HI all,
Got my English version of Amazfit last week.
I was really exited as I intended replacing my old garmin forerunner 405 with the new smartwatch.
On my first run yesterday I wore both watches and ran a usual 9km near my home.
At the end I got 9.03km on the garmin and 8.79km on the amazfit.
The difference is huge for such a distance.
Has anybody else experienced this? I guess this turns amazfit an unusable tool for Runners..!!
A.
you need to get a gps fix first, before starting the activity, have you done that?
when starting an activity, you need to wait for some 15~30 seconds, till you get a fix, and start running/biking/running around with a latex tale.
please try to re-test again, and also make sure that you have the latest version updated of the watch, 1.3.1m
Good luck!
vactirio said:
At the end I got 9.03km on the garmin and 8.79km on the amazfit.
The difference is huge for such a distance.
Click to expand...
Click to collapse
Are you sure the Amazfit is inaccurate and not the Garmin? If i compare Tracklogs from my Garmin Oregon 450 GPS with the ones from Amazfit they are both quite on the same level, the Amazfit does corners even a bit better. If the Amazfit drifts in position, the Garmin does, too.
And as already mentioned, the Amazfit starts a bit off. so if you want precision, wait for the GPS to be ready.
Beleriand said:
Are you sure the Amazfit is inaccurate and not the Garmin? If i compare Tracklogs from my Garmin Oregon 450 GPS with the ones from Amazfit they are both quite on the same level, the Amazfit does corners even a bit better. If the Amazfit drifts in position, the Garmin does, too.
And as already mentioned, the Amazfit starts a bit off. so if you want precision, wait for the GPS to be ready.
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Click to collapse
Hi 1immortal,
Yes I did wait a lot before starting.
In the fist 200m I had 40m of difference.
I thought thats ok - its the satellite fixing difference.
Then gradually this started getting bigger and bigger.
I run with friends who also have garmins and we mostly have a maximum of 50m difference in 10km which is acceptable.
found also this:
https://forum.xda-developers.com/smartwatch/other-smartwatches/amazfit-watch-impression-t3540770
vactirio said:
found also this:
https://forum.xda-developers.com/smartwatch/other-smartwatches/amazfit-watch-impression-t3540770
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Click to collapse
That issues were fixed. Both versions (US and CN) received updates for the GPS firmware. To make sure where the problem comes from you should take a closer look on the tracklogs in a suitable app on your computer. If you provide me GPX files from Garmin and Amazfit i will have a look on it. The shown distance on Amazfit has been quite accurate to the tracklog so far, while Garmin uses other methods to show the distance so i often had different distance on tracklog and on trip computer.
Another indicator is, that the tracklog for the Amazfit is the shortest. Bad GPS receivers usually measure greater distance as the coordinates are inconsistently jumping around and therefore create more meters.
Then you should always do multiple measurements. Sometimes the GPS just goes mad. Over the years i had different Garmin devices and now and then i was walking with a speed of 200km/h and was kilometers off...
Beleriand said:
That issues were fixed. Both versions (US and CN) received updates for the GPS firmware. To make sure where the problem comes from you should take a closer look on the tracklogs in a suitable app on your computer. If you provide me GPX files from Garmin and Amazfit i will have a look on it. The shown distance on Amazfit has been quite accurate to the tracklog so far, while Garmin uses other methods to show the distance so i often had different distance on tracklog and on trip computer.
Another indicator is, that the tracklog for the Amazfit is the shortest. Bad GPS receivers usually measure greater distance as the coordinates are inconsistently jumping around and therefore create more meters.
Then you should always do multiple measurements. Sometimes the GPS just goes mad. Over the years i had different Garmin devices and now and then i was walking with a speed of 200km/h and was kilometers off...
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Click to collapse
Hi Castra,
Thanks for the detailed answer.
I would be glad if you could examine GPX files.
Files attached.
Andreas
Okay, my name is not "Castra" btw.
Castra Regina is the ancient name of a roman fort that is called "Regensburg" nowadays. Thtat's where i come from.
I had a close look at your Tracklogs and did even look at the location in Google Street View. Really nice little town where you live. I think i will have to go to greece sometimes.
Mostly residential buildings so there is not too much influence on the signal. Anyway, the Amazfit does not perform as good as the Garmin and is drifting off in some locations. They are both not bad but the tracklog seems to be really a bit better on the Garmin.
Did you wear both watches on the same wrist or one left and one right? Was there probably someone running next to you that shielded or reflected the GPS signal? If not, the Garmin performs better here.
You did do the OTA Update to firmware 1.3.1m?
See Images, Blue is Amazfit, green is Garmin.
Beleriand said:
Okay, my name is not "Castra" btw.
Castra Regina is the ancient name of a roman fort that is called "Regensburg" nowadays. Thtat's where i come from.
I had a close look at your Tracklogs and did even look at the location in Google Street View. Really nice little town where you live. I think i will have to go to greece sometimes.
Mostly residential buildings so there is not too much influence on the signal. Anyway, the Amazfit does not perform as good as the Garmin and is drifting off in some locations. They are both not bad but the tracklog seems to be really a bit better on the Garmin.
Did you wear both watches on the same wrist or one left and one right? Was there probably someone running next to you that shielded or reflected the GPS signal? If not, the Garmin performs better here.
You did do the OTA Update to firmware 1.3.1m?
See Images, Blue is Amazfit, green is Garmin.
Click to expand...
Click to collapse
Hi,
Sorry about the name... and if you come to Athens I can give you a tour....
I wore Amazfit on the left and Garmin on the right. Amazfit was sometimes "blocked" by my running shirt which was not a thick one as the weather was good enough.
Its very usual that the 6 years old Garmin is blocked by the shirt (specially when its cold weather) but NEVER had a problem with that.
There was a friend running next to me but not blocking me.
So my fear that amazfit is inaccurate is probably true.
Thanks for the time spent. I think this is something runner should know before buying this watch as it turns it to be unusable.....
Latest firmware is installed.
Andreas
vactirio said:
I wore Amazfit on the left and Garmin on the right. Amazfit was sometimes "blocked" by my running shirt which was not a thick one as the weather was good enough.
Its very usual that the 6 years old Garmin is blocked by the shirt (specially when its cold weather) but NEVER had a problem with that.
There was a friend running next to me but not blocking me.
Click to expand...
Click to collapse
Well as the Amazfit is quite good when you are running in one direction and then drifts away in the other it might be that it just lost direct view to some satellites and then used reflected signals which make accuracy notable worse. A person just running by your side or your own body could cause that, while a shirt should not have any influence. So if the person was running to your left it might have had a big influence on the result.
A bit more scientific approach would be to wear both watches on the same wrist and do more runs for comparison before posting that the Amazfit is unusable.
I have been using the watch for two months now and did not experience such huge differences from my other GPS devices. And i really have a close look on many tracklogs as i use it to map new paths in Open Street Maps. I always have the watch and a Garmin Outdoor-GPS with me and use both tracks.
Beleriand said:
I have been using the watch for two months now and did not experience such huge differences from my other GPS devices. And i really have a close look on many tracklogs as i use it to map new paths in Open Street Maps. I always have the watch and a Garmin Outdoor-GPS with me and use both tracks.
Click to expand...
Click to collapse
I don't really agree with you
I run with Garmin for approx 5 years and I rarely got big deviations and it was always +/- 30m.
When you wear a watch you need to know that it works well in order to evaluate your pace.
As you saw in the maps Amazfit does not record well and this cannot / should not be explained by minor factors (left right hand).
The only really acceptable factor could be big buildings and bad weather. This is not my case.
I also searched on the net and found that there are some references about bad GPS reception.
Just for the info, why do you run with 2 GPS devices?
Andreas
vactirio said:
Just for the info, why do you run with 2 GPS devices?
Click to expand...
Click to collapse
I do not run with two devices but when i explore new areas or when i am Geocaching i use the additional Garmin GPS to get a second tracklog and to store Points of interest as new waypoints.
That is helpful sometimes when editing in OSM.
If Garmin works better for you, stay with it.
Their devices are quite good but a bit expensive. I had a few over the last 17 years.
Another test today in steep terrain. Today i had some minor drifts from the Amazfit compared to Garmin, previous tracklogs and OSM data, see attached image.
(Garmin magenta, Amazfit cyan)
The Amazfit really should get another update but as the sensor is quite new, chahces are good to get one.
Weirdest thing is that my Garmin created 725 trackpoints while the Amazfit created 14690. Distance 6,5 km....
They should probably reduce the amount a "bit" which could also save some energy.
I've received my Amazfit Pace version few days ago, updated to last US version. I noticed than GPS accuracy inside the building is terrible. I start Run workout in the office walking around 200-300 meters inside the room. After 6 hours Amazfit counted 30 !!! km of distance. I was shocked so much. Initially I was planning to use Amazfit for itinerary tracking or geotagging tracking during holiday trip. But with such accuracy it's not possible. Anyone has the same problem?
Noramas said:
I've received my Amazfit Pace version few days ago, updated to last US version. I noticed than GPS accuracy inside the building is terrible. I start Run workout in the office walking around 200-300 meters inside the room. After 6 hours Amazfit counted 30 !!! km of distance. I was shocked so much. Initially I was planning to use Amazfit for itinerary tracking or geotagging tracking during holiday trip. But with such accuracy it's not possible. Anyone has the same problem?
Click to expand...
Click to collapse
Are you serious? GPS inside buildings for sure isn't working!
alexinc said:
Are you serious? GPS inside buildings for sure isn't working!
Click to expand...
Click to collapse
Amazfit show me GPS as available inside the building because of large windows. BTW, if signal is low why Amazfit distance is jumped so much? I saw that distance on the screen was counted and increased almost every second without any watch movement.
I did the same test at home. If Amazfit is located near the window then distance is not counted and stuck on 0.00km. If I try to walk inside the room the the distance start to count and after few minutes show 300-400 meters. Strange.
Noramas said:
If I try to walk inside the room the the distance start to count and after few minutes show 300-400 meters. Strange.
Click to expand...
Click to collapse
It is not strange. GPS works by measuring the time signals from different satellites take to reach your device. Then your position is calculated by triangulation.
It is only accurate if you receive direct signals from satellites all over the sky. Inside a building you have no sky view so all the signals you get are reflected by objects like buildings, mountains. If they are reflected they travel a longer distance and so the calculation loses precision. That causes jumping positions and therefore creates some mileage.
Older, less sensitive GPS devices only used direct signals and were much more precise but they also completely lost position in dense forests and between high buildings.
All modern GPS consumer oriented modules on the market are optimised for a quick fix, even under worst condtitons, then comes power saving and price.
Precision is the least of the requirements as you can adjust your position to a map when using it for navigation. (Lock to road)
Good for all the smartphone manufacturers and Google Maps users but bad for all outdoor enthusiasts.
same issue
Hi!
I got the same issue. Amazfit CN version. Firmware Rel 9 (1.2.14) from XDA.
Running in forest, orienteering. Amazfit watch in Trail run mode always reports 400-500m less within 7-9km distance. Difference is confirmed by 5-6 runs.
For example today Amazfit watch: 7.97km, Endomondo (Samsung S7): 8.42km.
I see also issues with max speed, its unreal on Amazfir watch (crap should be filtered out).
I plan to do test using Amazfit and my old Garmin Forerunner 300 in next weeks to prove test results.
Kind regards,
J.
js_online said:
Hi!
I got the same issue. Amazfit CN version. Firmware Rel 9 (1.2.14) from XDA.
Running in forest, orienteering. Amazfit watch in Trail run mode always reports 400-500m less within 7-9km distance. Difference is confirmed by 5-6 runs.
For example today Amazfit watch: 7.97km, Endomondo (Samsung S7): 8.42km.
I see also issues with max speed, its unreal on Amazfir watch (crap should be filtered out).
I plan to do test using Amazfit and my old Garmin Forerunner 300 in next weeks to prove test results.
Kind regards,
J.
Click to expand...
Click to collapse
Hi J.
After opening this thread I did get in contact with Huami.
I informed them about the GPS accuracy problem and they were kind enough to send me a new watch.
Unfortunately this did not help. The new watch had exactly the same bad behavior.
So I stopped using the amazfit. I found also to have more than 200-300m less at a 9Km run.
As you probably know that's too much for such a distance.
Below is the mail I did send to Huami.
I did not get yet an answer to that and I think I will not get one
---------------------------------------------------------------------------------------------------------------------------------------------------
Got yesterday the new Pace. Pretty exciting I must admit.
I did a 9,5km run on purpose last night in order to test it.
On my left hand both Amazifit Pace and Garmin 405.
Unfortunately the results were not better and much disappointing
So to start I should say that I run in rural areas but in open space.
I attached to this email two GPX files in order to get examined by your team.
One from my old Garmin and One from Amazfit.
On the 9,5km run I got a liithe more than 200m of difference.
This difference is translated in 6 seconds of pace difference which is vary big for a runner.
Pace difference is shown bellow:
(strava is from amazfit and runkeeper is for garmin)
So I uploaded both GPX files on http://www.mygpsfiles.com/app/ in order to visualize them and the findings were interesting.
It seems that though Amazfit gets much more points than my old Garmin, those points are often very inaccurate.
Please find bellow some examples.
Orange trace is Garmin.
Blue trace is Amazfit Pace.
Amazfit (in blue) seems really off road.
Here it seems to loose distance. I did run as Garmin says to the roundabout
I must emphasize that its really an open space run with a very good GPS signal reception.
So it seems that its something going wrong with the GPS of the Amazfit.
I am wondering if there is a calibration problem with Europe/Greece.
vactirio said:
Hi J.
So I stopped using the amazfit. I found also to have more than 200-300m less at a 9Km run.
I am wondering if there is a calibration problem with Europe/Greece.
Click to expand...
Click to collapse
Thanks for explanation and visualization. Unfortunately I can't link my workouts with street as there are no streets in forest
I am little bit surprised about this: Endomondo makes less measurements and counts more, Amazfit makes times more measurements and counts less.
I was searching answers and found this article online (type: www dot fellrnr dot com/wiki/GPS_Accuracy), must read... Explains many issues from technical perspective.
I believe and hope that issues are related to software (firmware) of GPS chip and post processing and will be solved in the next firmwares.
Please also note: "AMAZFIT includes the world's first 28 nm Sony GPS sensor". As you know first is always first and requires debugging
"Sony – GPS (with 1/10th the power!) now sampling.
You know how using mapping apps on your smartphone kills your battery? Well now there’s hope. Sony’s getting some super impressive results with their new GPS using 28nm FD-SOI technology. These GPS are operated at 0.6V, and cut power to 10x (!) less than what it was in the previous generation (which was already boasting the industry’s lowest power consumption when it was announced back in 2013)."
You can find more info online.
I completely agree that for running numbers are important. Especially for high pace 4.30 and below, because each seconds counts. I will take Amazfit to my next street workouts for marathon training to do the same gps data analysis as you did above.
My strategy is to wait for firmware updates and hope issues will be resolved.
Thanks.
Related
I've recently received my Amazfit Stratos and I was worried about the GPS performance. I took a run with both the Stratos and my Garmin Forerunner 235 with this results:
(Amazfit data in red and Garmin data in blue)
GPS fix takes longer in the Amazfit (about 25-20 secs more)
Overall, both give a similar total length (Amafit 10.47 Km vs Garmin 10.46)
View attachment 4433182
It seems that at the start Amazfit had a big gap in the position:
View attachment 4433183
But it gets corrected and they follow very similar path. I would say even that Amazfit takes a more precise GPS measures or in a shorter interval since the curve is less edgy:
View attachment 4433184
Although it is not perfect and Garmin seems to have a slightly better GPS, I would say the Amazfit GPS is good enough for my needs.
Does the Stratos have different GPS modes? Usually in Garmin or other sports watches one can set the GPS interval for more or less accurate values / battery life. Also is there a smart mode which is just polling GPS like every minute and then estimating the values in between using the accelerometer? Is Glonas supported?
Theres no GPS modes in settings...
janteque said:
I've recently received my Amazfit Stratos and I was worried about the GPS performance. I took a run with both the Stratos and my Garmin Forerunner 235 with this results:
(Amazfit data in red and Garmin data in blue)
GPS fix takes longer in the Amazfit (about 25-20 secs more)
Overall, both give a similar total length (Amafit 10.47 Km vs Garmin 10.46)
View attachment 4433182
It seems that at the start Amazfit had a big gap in the position:
View attachment 4433183
But it gets corrected and they follow very similar path. I would say even that Amazfit takes a more precise GPS measures or in a shorter interval since the curve is less edgy:
View attachment 4433184
Although it is not perfect and Garmin seems to have a slightly better GPS, I would say the Amazfit GPS is good enough for my needs.
Click to expand...
Click to collapse
OMG, it's drama. Starting to regret that I've already ordered For me, in term of GPS quality, Garmin (Fenix family to be precise) was a total sh*t comparing to Polar V800, wchich gives outstanding recorded track precision. But now I can see that Amazfit 2 is even worst then Garmin...:/
I just checked out the FAQ on amazfitcentral and saw that battery life time with GPS is 35h. So it must be some similar to smart GPS mode, means GPS intervall is low and the gaps in between are filled with help of accelorameter.
SteffenBerlin said:
I just checked out the FAQ on amazfitcentral and saw that battery life time with GPS is 35h. So it must be some similar to smart GPS mode, means GPS intervall is low and the gaps in between are filled with help of accelorameter.
Click to expand...
Click to collapse
Maybe this is the reason. If yes - hope that some update will give a choice - for example 1s, 30s, 60s sampling.
SteffenBerlin said:
I just checked out the FAQ on amazfitcentral and saw that battery life time with GPS is 35h. So it must be some similar to smart GPS mode, means GPS intervall is low and the gaps in between are filled with help of accelorameter.
Click to expand...
Click to collapse
Don't only read half of the information, because then you get the wrong impressions.
They have a new Sony chip ( 28nm ) that needs only a fraction of the energy that the others need.
Nice test, thx.
It would be great if someone compared Pace vs Stratos.
I just got an Amazfit Bip and took it out on hikes this weekend. The GPS distance seems to read high by as much as 30% when compared to a Garmin and a TomTom that we had on the same hike. When looking at the GPS tracks, it seems the Bip is erratic, the track zigzags a lot, which could explain the huge distance difference. Because of this erratic nature and that the Garmin and TomTom read almost the same, it points to the Bip GPS distance being quite inaccurate. For reference, compare these two tracks.
I am running firmware v1.1.1.00 on the watch. I can't tell what GPS firmware it has (how do I tell that?). Can the GPS be more accurate on the Bip or not? With GPS+GLONASS I expected much better. This post says they should be the same, but I am seeing huge differences. As a matter of fact, when sitting still I see a gain of 0.01mi every couple seconds!
Anyone have any advice? Thank you for any help you can offer!
Here is another example from a hike yesterday. The Bip is saying 25% too much distance. The Bip said I went 2 miles further, that is way too far off. If you look at the tracks closely you see that the Bip is very erratic. Closely looking at them, the TomTom seems to be following the best, it and the Garmin differ by less than 4%.
roombarobot said:
I just got an Amazfit Bip and took it out on hikes this weekend. The GPS distance seems to read high by as much as 30% when compared to a Garmin and a TomTom that we had on the same hike. When looking at the GPS tracks, it seems the Bip is erratic, the track zigzags a lot, which could explain the huge distance difference. Because of this erratic nature and that the Garmin and TomTom read almost the same, it points to the Bip GPS distance being quite inaccurate. For reference, compare these two tracks.
I am running firmware v1.1.1.00 on the watch. I can't tell what GPS firmware it has (how do I tell that?). Can the GPS be more accurate on the Bip or not? With GPS+GLONASS I expected much better. This post says they should be the same, but I am seeing huge differences. As a matter of fact, when sitting still I see a gain of 0.01mi every couple seconds!
Anyone have any advice? Thank you for any help you can offer!
Click to expand...
Click to collapse
Possibly A-gps update missing, poor receiving of gps signals (eg shielded/ under sleeve), interference from surroundings...
I found the AmazFit BIP as accurate as iPhone ... when it has a proper fix on the satellites.
I'm not sure on the 'other' sport settings, but in 'outside running' mode it takes a sample around every 1 second, and that sample frequency will affect the amount of zig-zag also.
The 'while sitting' or stationary setting, may still get a variation of 50m or even more depending on the momentary interference. (For 'GeoCaching' you'd have to be in 1 spot for 10 minutes to enable calculation of a more exact -around 1m accuracy- location. An averaging algorithm is included in some GeoCaching software...... but inside the BIP there is no offering for such software ).
I have the same issue, but more severe. The watch indicates the GPS signal is found and after awhile of running I check the watch and the distance has jumped 2-3 miles ahead of what it should be! The distance drawn is always all over the map for most of the run and only seldom does it actually show the route I used. It's really annoying as this happens every other time and messes up the whole exercise for me. Once I check the watch after the run it does indicate correct amount of steps and distance, but the Mi Fit app is forever stuck with the wrong data and no way to correct it. The watch was only partly visible from under the sleeve, but even this doesn't explain the problem as I used to run the whole winter with gloves and a much thicker coat completely covering the watch and didn't have these problems. Also the watch doesn't give those two quick vibrations after finding the GPS signal as it used to, which is also weird.
I saw this comparison the other day between Mi Band 2 on the silicone strap and on the metal bracelet. When on bracelet, the values were not accurate, they didn't correspond with the data on the phone, and on the silicone strap gave the correct values.
I open this post because I haven't been able to find any review or opinion about one of the functionalities that offers Stratos: Skiing.
Has anyone try it and can share his or her experiencie?
I am interested mainly if it is able to dismiss the skilifts automatically on Alpine ski.
I assume it can measure speed, hear rate, and the other normal variables that are shared with running.
Any experience?
As well I am interested to know if for long multi-day hiking trips the battery would resist with the GPS active? (like 12hours sport tracking?)
In general, it would be good to know the tracking difference between one sports mode or the others
Last weekend I just made a long hike and starting with full battery and with GPS on of course, it recorded all my 11 hours hike. At the end, the battery was at 12%
I have just returned from a 400+km hike where I used the Stratos constantly. With an average of 7h of hiking I got 3 full days of battery life: Bluetooth on, sleep tracking but obviously internal HR sensor off during activities and outside.
Tioz90 said:
I have just returned from a 400+km hike where I used the Stratos constantly. With an average of 7h of hiking I got 3 full days of battery life: Bluetooth on, sleep tracking but obviously internal HR sensor off during activities and outside.
Click to expand...
Click to collapse
What about the readings on altitude? Looks pretty inaccurate in the reviews and it's a very important metric when hiking.
Does anyone else have any feedback on the "Skiing" mode please? I am also interested in this mode, and whether it automatically detects travel on the ski lift. Thanks.
Stratos skiing mode
Just used my stratos for a couple of days skiing and am pretty disappointed in the results. Firstly the altitude readings are pretty inaccurate, out by more than 10% in some cases. Amizfit support responded with the following "The altitude error is greatly affected by the environment.
Due to environmental factors, the error may reach tens of meters or even hundreds of meters." So even though this is a metric that is important to skiing dosn't look like it can be improved.
Secondly, yes it looks like the watch does stop recording during lift travel and start again during a downhill run. This is what I noticed when I looked at my tracks. There was the odd lift travel that may have been a bit downhill that got recorded as a lap but most of the laps were actual runs. I even looked at my watch at the end of a run/lap and noticed that it recorded the downhill distance and descent for that lap. When I started riding the lift these results cleared and the watch was ready for the next run/lap. So this is were the good news stops. Even though I was under the impression that the watch was recording all this great individual lap information when I tried to see my results in the evening on my phone app most of my metrics were all combined into totals. For example total laps, total downhill km, total descent and total time. The only metrics listed per lap/run is max speed which is good and the time each lap ended, which is useless becuase it includeds lift waiting and riding time.
It is sad as I believe the watch has been designed and is capable of gathering detailed information but the phone apps inability to present this information totally ruins a potentialy good product. At the moment I would not recommend this watch for skiing. Go back to using your phone and any of several free ski tracking apps.
Many thanks for the detailed feedback. I used the Skiing mode on my Pace a few months ago and found it almost useless because it didn't detect travel on the skl iift and treated it as part of the ski run, thus totally ruining the data it collected.
So it meant I had to take my glove off to manually start and stop the Pace (since it doesn't have buttons like the Stratos), which of course means digging under the sleeve of your ski jacket and fleece, and then adjusting the clothes back. Doing this at the start and stop of every run is a big hassle when you're with a group of people. It's not worth it.
I don't think I checked the altitude accuracy, so I can't comment on that. I also couldn't work out how to use the 'lap' function. It treated every run I did as the first lap, even if it was a repeat run on the same slope.
Amazfit still doesn't seem to have any instructions for this mode.
Honestly, the GPS is a ****. One week ago I did a small running. The GPS showed me about 5% less then the reality. For such a price of the watch it is OK. But yesterday I did the same trail, same weather conditions, but the watch showed me by 28% more! That's not acceptable even for the price of GTS...
Honestly, even the pedometer shows better results...
It's not about weather conditions. It's about currently available GNSS satellites over your head. GNSS is not static.
No, GTR and GTS have a badly designed antenna that results in a very weak signal. They found a workaround that helps if you keep A-GPS up-to-date and use Amazfit app and you walk/run close to roads (it smooths the path just like car navigation systems).
I read that calibration of compass helps GTS with GPS, but I do not know how to do that...
Ok, I found how to calibrate the compass, will see at weekend if it helps...
OK, so after the compass calibration the GPS is pretty OK, the difference is around 5%, it counts down the turnings so shows a little bit less. I compared it with Huawei Pro 3 and the result is the same.
I have tested the GPS of the GTS and I have to say that I'm impressed. I've read many bad comments but what I see is actually pretty accurate. I have compared the results with a Garmin Venu and the results (avg pace, distance) are practically de same (probably within error margins). I can definitely say that the GPS accuracy is on par with the Garmin. The only difference worth noting is the instantaneous pace, in the garmin it's more stable but the avg pace are almost the same. I only wished to be able to customize the metrics during a workout, meaning to be able to move the avg pace on the first screen.
PhilippeMulot said:
I have tested the GPS of the GTS and I have to say that I'm impressed. I've read many bad comments but what I see is actually pretty accurate. I have compared the results with a Garmin Venu and the results (avg pace, distance) are practically de same (probably within error margins). I can definitely say that the GPS accuracy is on par with the Garmin. The only difference worth noting is the instantaneous pace, in the garmin it's more stable but the avg pace are almost the same. I only wished to be able to customize the metrics during a workout, meaning to be able to move the avg pace on the first screen.
Click to expand...
Click to collapse
I agree, with latest update and a-gps update, we went skiing and I had no problem GTS tracked my speed, skiing paths and everything very nicely without problems. GPS lock on the beginning needed about 5-max10 seconds to lock.
I'm very satisfied with it
Hi,
I have a Stratos 3 and was expecting a better GPS Accuracy.
Have recently updated it to 4.2.2.1 and it improved but it still takes take some time to lock signal.
Also, after a few experiences, I have noticed that if you start the activity immediately after locking signal the first few minutes will be inaccurate and it is better to wait a few minutes.
Any experiences from anyone else?
What pair are you using?
leugim1 said:
Hi,
I have a Stratos 3 and was expecting a better GPS Accuracy.
Have recently updated it to 4.2.2.1 and it improved but it still takes take some time to lock signal.
Also, after a few experiences, I have noticed that if you start the activity immediately after locking signal the first few minutes will be inaccurate and it is better to wait a few minutes.
Any experiences from anyone else?
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Same here - I had the first Stratos and finding GPS signal was quite a bit faster than on the new one. Hope they'll do something to improve it. Though, considering what have they done with the Amazfit app, I'm not very optimistic...
1immortal said:
What pair are you using?
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I have tried GPS + GLONASS and GPS + Galileu so far.
Galileu was accurate after the first 5 minutes only.
i'm expecting the same with my Stratos 3: GPS+ Galileo if start activity immediatly after GPS Fix it needs some minutes more to be accruate (5 min) but after it's perfect (i'm cycling in forest)
I did not try GPS+GLONASS for the moment will do it next time to see if it's better for initial fix and if tracking accruacy is as good as GALILEO
Gps and heart sensor
Hi, I sold my gtr because gps didnt work, I thinking I a Stratos 3, What Is it The heart sensor accuracy?
leugim1 said:
I have tried GPS + GLONASS and GPS + Galileu so far.
Galileu was accurate after the first 5 minutes only.
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Nobru_12345 said:
Hi, I sold my gtr because gps didnt work, I thinking I a Stratos 3, What Is it The heart sensor accuracy?
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the HR sensor is exactly the same so you know it!
Tks for reply... I think that we need to considering the sw factor as well....
Sad to hear that, I'm using a Pace and thought Stratos 3 as a improvement over GPS accuracy and Heart rate.
Pace is a mixed bag, sometimes it's very good but, even in open areas, sometimes the accuracy show my position on the other side of the street.
Often I experience inaccurate position on the first minutes also.
Let's hope for a software update to increase reliability.
Stratos 3 uses the new HR sensor used in both Verge and GTR/GTS, so it should behave the same. It's a bit bigger and should work better than the ones from Pace and the original Stratos, as it does if I compare my Verge with them. Just don't expect it to be perfect, as any other PPG (optical) sensor.
The same issue with Pace and Stratos (v1). You should always wait 2-5 minutes at the green Go screen before starting activity recording. Also, with Pace, I used to run with Airplane mode for better accuracy, but it looks like in current versions it makes no difference (better accuracy in both cases than early). That way you can avoid GPS inaccuracy. My Stratos 3 is on the way.
Are you on latest firmware? I had mine for a week and updated it the first day. GPS is very good and fixes fast (I returned the GTR because of the GPS being so bad). Maybe your issue could be location related? Like AGPS data related?
@Paxy
Weird. I'm a new Stratos 3 user.
I have no accuracy issue with the GPS (Glonass) and the fix is done in less than 30 sec. Unlike the GTR, I sent back whose GPS was a deep sh.t.
I made 8 cycle workout and it worked very well. I leave near Paris there is buildings (not too high) around me during my
sessions and the recorded track is very good.
hercule18 said:
@Paxy
Weird. I'm a new Stratos 3 user.
I have no accuracy issue with the GPS (Glonass) and the fix is done in less than 30 sec. Unlike the GTR, I sent back whose GPS was a deep sh.t.
I made 8 cycle workout and it worked very well. I leave near Paris there is buildings (not too high) around me during my
sessions and the recorded track is very good.
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Can you, please, post an example, I'm thinking on ditching the GTR and considering a Stratos 3(which should actually be 2, because the first one was called Pace)?
Thanks!
Surf_Dude said:
Can you, please, post an example, I'm thinking on ditching the GTR and considering a Stratos 3(which should actually be 2, because the first one was called Pace)?
Thanks!
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Hi here is 2 run one with GTR and one with Stratos, there is NO comparison.
In orange, the trace recorded by both watch and under you'll find the covered distance which totally approximate on the GTR as most of the run was not receorded.
stratos3 https://photos.app.goo.gl/UExKHU5qT9w59WKc9
gtr https://photos.app.goo.gl/HXJLT7ddJEw9HLg56
My review: stratos 3 Vs GTR pictures explains everything
hercule18 said:
Hi here is 2 run one with GTR and one with Stratos, there is NO comparison.
In orange, the trace recorded by both watch and under you'll find the covered distance which totally approximate on the GTR as most of the run was not receorded.
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Thanks for taking the time to post these.
Seems pretty accurate. Have you checked through google maps to see if the distance is accurate? Is this the route: https://www.google.ro/maps/dir/48.8...0x47e67b314410fbbb:0x21dd71e67173a3e0!1m0!3e1 ?
@winni21 That's how my GTR cuts corners as well. Stratos 3 seems very good.
Now I'm pretty sure the GTR has faulty hardware for GPS (frame used as shared antenna with bluetooth), since they both have the same gps chipset and will never get fixed through software update.
Surf_Dude said:
Thanks for taking the time to post these.
Seems pretty accurate. Have you checked through google maps to see if the distance is accurate? Is this the route: https://www.google.ro/maps/dir/48.8...0x47e67b314410fbbb:0x21dd71e67173a3e0!1m0!3e1 ?
@winni21 That's how my GTR cuts corners as well. Stratos 3 seems very good.
Now I'm pretty sure the GTR has faulty hardware for GPS (frame used as shared antenna with bluetooth), since they both have the same gps chipset and will never get fixed through software update.
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Compared to Google Maps, the given distance by the Stratos is pretty accurate as I have 9.53km for stratos and 9.6 for GMAPS.
But on my road I have to go in a tunnel for few meters and the GPS signal is lost at this time. On this section the Stratos show a straight line and google map a nice curve. The curve is around 200m, so this part explain partially the 70m missing on the Stratos.
Surf_Dude said:
Can you, please, post an example, I'm thinking on ditching the GTR and considering a Stratos 3(which should actually be 2, because the first one was called Pace)?
Thanks!
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You are wrong. There is the Pace and there is Stratos (in China called SportWatch 2). There is no Stratos2 and Pace is not Stratos1.
My Stratos3 just arrived. It has fast GPS fix, but haven't tested accuracy yet.
I will compare it's accuracy against Pace soon.
BTW. Huami declares only Pace, Stratos and Stratos3 as sport watches. GTR,GTS,Verge etc are just smart watches without GPS in the focus of development.
There is also Stratos+ on Amazfit official web. The problem with the naming comes from resellers giving different names like Startos 2S or Pace 2.
But indeed there are 3 generations of the Amazfit Sports watch (Pace, Stratos/Stratos+ and Startos 3)