Am i only one? Stratos bad GPS. - Amazfit

Hello,
I recently purchase Amafit Stratos main for sports activity and good GPS tracking.
My decision was made according many good reviews but what a surprise?
After several activities i was very very disappointed by its GPS tracking, im on latest 2.3.7.0. ROM.
For example walking only 6km, it was off bu 200m.
The gps map was showing gps drift and bad road tracking, i was compare it with polar m200 and garmin fenix 5.
When it upload data with Strava non of data didnt match, i mean total distance and every km i run.
I even make factory reset, but results was the same, bad unprecise gps and different data with strava .
So i search again on net for someone like me complaining about bad gps accuracy for stratos but nothing found!
Please help.

Related

Gym for Amazfit

It's possible add a activity for gym workout in amazfit?
I'd be very interested in having that as well. As of now, with firmware 1.3.4f, the list of activities that you can track is really short: Run, Walk, Run indoor, Bike, Bike indoor, Trail run and Elliptical. When I used to have the MiBand 2, I'd have continuous HR on and track circuit training in Endomondo. Now, unfortunately, I am unable to do any of that
Any ideas if there's a way to:
- add more sports activities to the Sports tab?
- track circuit workouts in any way, ie in Endomondo?
Thanks
kopaczus said:
- track circuit workouts in any way, ie in Endomondo?
Thanks
Click to expand...
Click to collapse
Continous HR is available in Amazfit, whats stopping you from doing what you were doing earlier?
Well if I log a circuit workout in Amazfii it doesn't get exported to Strava. I think I read somewhere that it only exports workouts where you get GPS fix, ie. when you're outside. Other than that, I'm too cheap to pay 50 bucks for premium Strava if I had that for free in Endomondo...
I'm in a similar boat, don't really want to pay premium strava, but thought that maybe I could use the "Elliptical" training mode for my gym workouts to track time and heart rate. I didn't realise you couldn't upload the workout itself somewhere after training though to analyse the heart rate graph if you wanted to for example.
@kopaczus, how do you currently track / log your gym and circuit sessions?
https://forum.xda-developers.com/smartwatch/amazfit/sport-activity-strava-sync-t3673040
You are not the first that want's the non GPS activities
Thank you @fzelle
I don't have a watch yet, doing my research but I'll definitely look into this.
I'm sure I'm not the only one who wants non GPS activities or gym workouts. Hope this at least resolves the strava integration!
5nak3 said:
Thank you @fzelle
I don't have a watch yet, doing my research but I'll definitely look into this.
I'm sure I'm not the only one who wants non GPS activities or gym workouts. Hope this at least resolves the strava integration!
Click to expand...
Click to collapse
Although non GPS activities are not uploaded to Strava they can still sync to the Amazfit App so you have a record on your phone of riding time average HR and kCal burn.
Yeah, but that's useless if you have all your workouts in a single tracking app - Endomondo for me - to analyze your performance and plan ahead. Amazfit app is okay, but doesn't cut it.

Total mileage 23% different reported.

Hi everone,
I am using Amazfit Stratos, Rom version 2.3.4.0 .I have a climbing activity on 1 spetember 2018.
The total mileage shown on watch & Amazfit App is 15.1km, but it only 12.2km (12.6km if consider 3d distance) via Strava or Google Earth after I download the gpx file, it is 23% different. The huge mileage different also happened when climbing mountain with elevation more than 500m, the others activity will have 3% to 6% different (the watch reported higher).
Anyone have this problem? How to solve it?
Is anyone noted that the elevation info always missing in the first few point of the GPX file downloaded?
Probably you had 3D Data on (search for what it means).
lfom said:
Probably you had 3D Data on (search for what it means).
Click to expand...
Click to collapse
Yes, I know what is 3d data, I have set 3d data on for this climbing activity.
But it is 12.2km (without consider 3d) and 12.6km (with consider 3d), calculated by myself and checked using "Google Earth".
Will it because of movement of the hand where I wear the watch?
Sounds like a problem with the altitude measurement. I'm not happy with that too. Opening compass, doubletapping on it and waiting for a GPS fix before starting an activity is helping a bit.
I see several reasons for this:
1) The phone app is smoothing out the altitude data by using digital elevation map data, which at the end comes to different mileages.
2) In the mountains unprecise GPS signal can lead to significant differences, 30m 2D can sum up to 100m or more 3D, a balance between weak signal filtering and loosing signal is not easy to achieve.
3) During my tours I had another GPS running parallel. What made a real difference was, what I wrote under 2) and that my Pace did not exactly recognize pauses, which resulted in several pausing clusters which added to the mileage.
My conclusion:
I'm using the watch but after the activity I:
1) export it to tcx format via the exporter available in this forum.
2) manually delete the first trackpoints which either have no altititude or an unrealistic speed.
3) correct the altitude with external tools if I see it necessary.
Some of this after activity steps are done by the phone app automatically. Since the phone app is not giving me options for this I use other tool to know exactly what is going on.
Edit: The handmovement shouldn't influence outdoor results.
Did you check the altitude graph? It seems that run/walk use GPS for altitude whereas trail run/climb use the barometer. I still think it's related to 3D Data: the higher the altitude change, the higher will be the final difference in distance when compared to common "2D" data.
---------- Post added at 01:39 PM ---------- Previous post was at 01:24 PM ----------
Also, latest international firmware for Stratos is 2.3.6.1, and you are still running 2.3.4.0... Latest Amasfit app version may make a difference too... Auto-pause may make a difference too: either disable or use something other than "stand still".
lfom said:
Auto-pause may make a difference too: either disable or use something other than "stand still".
Click to expand...
Click to collapse
Are there other settings for Auto-pause than "on/off"? If so, where can I find them on the pace?
Profil Climbing and profil Trail Running have only Auto-pause "on/off" on ROM Pacificator WOS 2.6.3.1.
nhedgehog said:
Are there other settings for Auto-pause than "on/off"? If so, where can I find them on the pace?
Profil Climbing and profil Trail Running have only Auto-pause "on/off" on ROM Pacificator WOS 2.6.3.1.
Click to expand...
Click to collapse
Not all activities have the other options, then you can try disabling it and use the button to pause manually. When recording walkings I found that it was too sensitive and it added a lot of bad data points to GPS when enabled.
lfom said:
Not all activities have the other options, then you can try disabling it and use the button to pause manually. When recording walkings I found that it was too sensitive and it added a lot of bad data points to GPS when enabled.
Click to expand...
Click to collapse
I experienced the same phenomena. Thats why I stopped using "Auto-pause" and was wondering now about the possibility of finetuning autopause. Which activities have this, I couldn't find any?
Edit:
I found one: Cycling (1km/h steps)
Thats understandable but with the bad HDOP&VDOP filtering the Pace has, configurable Autopause in 0.1km/h steps could help in other activities too.
nhedgehog said:
I experienced the same phenomena. Thats why I stopped using "Auto-pause" and was wondering now about the possibility of finetuning autopause. Which activities have this, I couldn't find any?
Click to expand...
Click to collapse
Run has an settings based on pace, Outdoor cycling has it based on speed. "Common" walk doesn't have it, it's either on or off.
[/COLOR]Also, latest international firmware for Stratos is 2.3.6.1, and you are still running 2.3.4.0... Latest Amasfit app version may make a difference too... Auto-pause may make a difference too: either disable or use something other than "stand still".[/QUOTE]
the firmware now is 2.3.6.1 (2.3.4.0 is when that particular climbing activity on 1 september ),
I always off the 'Auto pause' except the first time i use the watch, because it keep on pausing (because my activity is inside the forest).
https://drive.google.com/open?id=1KSCwCRNmbnLdRgJaI1x9lkoogJN0Qv25
this is the list of all my activity, it is true that '3d data' will affect the total mileage. When I on '3d data' to climb the mountain, the total mileage is 20+% higher, but it is 3 to 5% higher when only the small hill.
However, activity after 29 september , '3d data' is set to 'off', the total mileage still 3 to 5 % higher.
lfom said:
Did you check the altitude graph? It seems that run/walk use GPS for altitude whereas trail run/climb use the barometer. I still think it's related to 3D Data: the higher the altitude change, the higher will be the final difference in distance when compared to common "2D" data.
https://drive.google.com/open?id=10whj9izJoNCdXGQOxWMZ-pvTdYv2fW5e
https://drive.google.com/open?id=1PjBOYg-Op3nOSbuGoq2i7gDrRceBq7On
https://drive.google.com/open?id=1T-pJWxehu0a7TpqhL1-7S3Is7GkLR5eb
https://drive.google.com/open?id=1PXFCi2TMMsf94Kt5GxrWCkF-J_3S8JQp
those are the elevation profile of activity on '1/9 climb 3d-on', '3/11 walk 3d-off', '10/11 run 3d-off' & '17/11 trail run 3d-off', it seem that all altitude record by Amazfit is lower than which corrected by 'Strava' or ' gpsvisualizer.com' or record by handphone.
Any solution to keep the total mileage within 1 to 2%? after off the 'auto pause' & '3d data' ? 3 to 5% is still consider too high.
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Click to collapse
Having a look at your pictures your altitude data is much better than that what my pace produces before this was "corrected" by the phone app.
I guess that means it comes from the phone app.
So that leaves us 3 options:
1)
Those 3 altitude correcting sources you use:
Amazfit
Strava
GPS visualizer
are probably using different altitude maps - meaning you can't compare them and have to decide which one you use. I guess the one from amazfit
has a lower resolution compared to those from Strava&GPS visualizer. You probably can't change the altitude mapsource of those 3 apps - just decide which one you prefer and stick to it.
2)
If I'm using altitude correction I don't rely on either of those apps but use LIDAR maps which have a higher resolution and therefore representing the altitude of the area better:
http://data.opendataportal.at/dataset/dtm-germany
To do that I need the RAW data from the watch, which I get as mentioned via a python script as tcx files directly from the watch. Edit: One could use the gpx file which the watch procides under activities but the program I use for reprocessing the track does not recognize the included heartrate data. Otherwise internal created gpx and external created tcx don't differ much.
My resolution: another app
3)
The third option I see would be relying on the altitude data the watch provides, which I personaly found not reliable at all. I guess that has something to do with the filtering of weak signal from the gps chip, which is done by the gps firmware. To solve this problem we can only hope for some better filtering via GPS firmware by the manufacturer.

Gym/weight lifting apps for Verge/Stratos/Pace ?

Hi guys,
I just bought a Amazfit Verge and would like to know if there are any workout tracker apps for the watch. Counting reps, weights, intervall timer etc. Im using "Jefit" on my phone right now, but would switch to another app if there is a standalone workout tracker for the watch. Thank you!
Officially, gym workout is not supported. I'm using treadmill when doing workout in the gym.
Sent from my CMR-W09 using Tapatalk
Brate I need a workout tracker where Ich can enter Reps/weight for each workout
the same i want also gym workout for example mi band 3 has exercise.
mili2110 said:
Hi guys,
I just bought a Amazfit Verge and would like to know if there are any workout tracker apps for the watch. Counting reps, weights, intervall timer etc. Im using "Jefit" on my phone right now, but would switch to another app if there is a standalone workout tracker for the watch. Thank you!
Click to expand...
Click to collapse
Have you tried installing the JEFIT APK on the watch? I know it is compatible with WearOS, but I don't know if it works in the AMAZFIT. In fact I have the same doubt as you, and I am looking for the best watch that has the possibility of measuring this, so if it works for you I appreciate you can share your experience.
Thanks and regards,
I also go to the gym for a while and try to lead a healthier lifestyle. Now that this whole coronavirus thing has happened, I have to do everything in my power at home. I do special exercises, lead a healthy lifestyle and thus I notice big changes in my body every day, which makes me very happy. However, I still can't get the desired result. When I look at other bodies more beautiful than me, I seem to be disappointed. For this reason, I am thinking of trying to consume SARMs. Can anyone on this forum help me with an opinion or advice? I also found a site where the best SARMs are https://jonnsaromatherapy.com/best-legal-steroids/ but I still don't know if it's worth trying or not. Please help.
Try AmazTimer
I use Endomondo; it has a long list of great features. The health and fitness app allows you to track your physical activity data, whether you're exercising outdoors or indoors. The app also works great with heart rate monitors to bring your heart rate data. It also analyzes your data to bring up a daily diary, split time for each workout, and nutrition supplements. I always use https://rats.army/product/rad140-testolone/, and I have it programmed in the app when I should take it.

Amazfit BIP GPS altitude

Hello,
I noticed that when I track an activity the speed and location are definitely based on GPS satellites however the altitude is completely wrong probably based on barometer? What's the point of this feature when you have GPS?
I hiked from 2200m to 2300m and it shows I went from 2000 to 3100 with all kind of up and downs in-between. Can I force it to use GPS for altitude?
-sandro- said:
Hello,
I noticed that when I track an activity the speed and location are definitely based on GPS satellites however the altitude is completely wrong probably based on barometer? What's the point of this feature when you have GPS?
Click to expand...
Click to collapse
I have the Bip S and this device has no baremeter anymore and it shows no altitude at all after recording a training. I asked the amazfit support exactly your question. Here the answer:
"As I know, the altitude data recorded by the GPS sensor is not very reliable. So the unreliable data will not be shown in the app. Hope you understand!"
The good side: A lot of tools are adding altitude automatically, e.g. when I upload the .gpx without altitude to Strava, Strava adds automatically the altitude according the location. Or you can add it by yourself with https://www.gpsvisualizer.com/elevation Maybe you can "fix" your altitudes like this.
How do I get gpx data once the recording is on the mifit app?
-sandro- said:
How do I get gpx data once the recording is on the mifit app?
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Click to collapse
Ah yes, with Bip you have MiFit app, this app does not have the gpx export feature.
With Bip S you have to use the "Amazfit App", there you have the .gpx export feature or the "sync with Strava" feature. I am not sure if you can use the Amazfit App with the old Bip, I think I have read that it should be possible.
For me it is still strange, that they have two apps doing more or less exactly the same....
Insnt it more strange that they can track location and not altitude? Like it's much different of a calculation when you have satellites.
-sandro- said:
Insnt it more strange that they can track location and not altitude? Like it's much different of a calculation when you have satellites.
Click to expand...
Click to collapse
It tracks altitude, but it is not displayed. The support is not that wrong with the answer. There are a lot of articles in the internet about accuracy of gps vs barometric altitude. e.g.:
https://geoawesomeness.com/accurate-altimeter-gps-watch/
For GPS it depends heavily if you have a good satellite constellation or not.

Best Amazfit watch for outdoor/hiking GPS use?

I was leaning very heavy to the T-Rex Pro..... but was unaware of the Android based options like the Stratos since they don't show up on the US site.
What I'm really looking for is a day to day things like sleep tracking, steps, and workouts and the ability to view GPS coordinates when I'm hiking with maybe a way to save waypoints and "navigate" to them with a simple arrow and distance.
Can any of the watches do everything I want?
monkey1911 said:
I was leaning very heavy to the T-Rex Pro..... but was unaware of the Android based options like the Stratos since they don't show up on the US site.
What I'm really looking for is a day to day things like sleep tracking, steps, and workouts and the ability to view GPS coordinates when I'm hiking with maybe a way to save waypoints and "navigate" to them with a simple arrow and distance.
Can any of the watches do everything I want?
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Click to collapse

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