Stratos 3 GPS accuracy - Amazfit

Hi everyone!
I have the Stratos 3 since December and I was very happy with it. But I have started to notice that the GPS accuracy is worse than the first months. I am not sure when it became worse but I have looked carefully at the maps from the last months and they are quite off the roads...
Does anyone have experience the same degradation on accuracy?
I just updated to the latest FW but the results are similar to the previous

Related

what are your observations on BLA-L29 8.0.0.136 firmware update?

I just got this update two days ago (c185). I can see the change in the night mode of the camera.
I also saw the new face-unlock feature.
However, battery life has dropped from almost 9 hours SOT to 6!
Also, Bluetooth connection with my car kept dropping and reconnecting all the time!
If you got this update, what changes you have noticed? Same thing happened with me?

Amazfit Bip poor GPS accuracy, help

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.

Amazfit GTS bad GPS

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

Stratos 3 GPS Accuracy

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?
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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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Click to collapse
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.
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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)

It is worth changing the Pace by GTR?

Hi, I'm using the Pace for 2 years, I'm satisfied with it, but the GTR's battery is very attractive.
I'm thinking buy it, but the reviews for GPS accuracy very disappointing.
The problem persists with update firmware or not compens the replace? The GPS from the Pace is very good.
Thanks
It is not worth it, I did the same upgrade. The GPS issue seems more like a hardware/design problem. I returned mine and bought the Stratos 3 instead. Very happy with the change
kulaki0 said:
It is not worth it, I did the same upgrade. The GPS issue seems more like a hardware/design problem. I returned mine and bought the Stratos 3 instead. Very happy with the change
Click to expand...
Click to collapse
+1 did exactly the same so far so good with S3
kulaki0 said:
It is not worth it, I did the same upgrade. The GPS issue seems more like a hardware/design problem. I returned mine and bought the Stratos 3 instead. Very happy with the change
Click to expand...
Click to collapse
winni21 said:
+1 did exactly the same so far so good with S3
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Click to collapse
I love my Pace, the GPS start speedly, it's very accurate, and I compare in runs with Garmin and Polar and is very similar, until in marathons.
The weak point is precisely the battery, using the GPS in average 1h30 per day, I need recharge in each 3 or 4 days, but this is similar in somes Garmin and Polar.
I was very excited when I saw the battery from GTR, but it is very sad that Huami spoiled something that worked very well.
I will wait for a new version.
Thanks
Actually the GTR is not comparable to the Pace. It has Amoled display and it is not always on, also the OS is not Android based but some custom thing much more limited (therefore they can achieve 24days)
The evolution of the Pace was the Stratos 2 and now the Stratos 3. All this have trasflective display which is always on. So if you are looking for an upgrade of the Pace then Stratos 3 was released last month. But don't expect to get anywhere GTR in terms of battery, more like double of what you get with Pace. Plus a faster system, better HR, offline music playing, external Bluetooth devices (main extra features)
kulaki0 said:
Actually the GTR is not comparable to the Pace. It has Amoled display and it is not always on, also the OS is not Android based but some custom thing much more limited (therefore they can achieve 24days)
The evolution of the Pace was the Stratos 2 and now the Stratos 3. All this have trasflective display which is always on. So if you are looking for an upgrade of the Pace then Stratos 3 was released last month. But don't expect to get anywhere GTR in terms of battery, more like double of what you get with Pace. Plus a faster system, better HR, offline music playing, external Bluetooth devices (main extra features)
Click to expand...
Click to collapse
I didn't know about Stratos 3 and was surprised by the specs as I use the watch for sporting purposes.
Does his GPS work correctly?
GPS works quite good. It fixes much faster than my old Pace and it is more stable (the Pace worked good sometimes)
kulaki0 said:
GPS works quite good. It fixes much faster than my old Pace and it is more stable (the Pace worked good sometimes)
Click to expand...
Click to collapse
Thanks

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