GPS Accuracy

ChrisA

@stefan-sheriden my wife walks a lot with her parents dogs and I often accompany her, whenever I am at home. She tracks her walks with a Garmin Venu / Vivoactive and when We compare tracks the S9 Peak and the Garmins are almost on par - mostly 10 to 100 m apart. We also stop often. (Waiting for the dog to catch up)

Tomas5

@stefan-sheriden I have exactly the same problem with S5. When I do hike with friends and family, their phones and watch (for example amazfit) record similar distance usually corresponding to multiple map sources. But my S5 measure more. For example on hike long 9km it measured around 11km if i remember correctly. Main source of problem looks to be at not pausing watch when i stop somewhere for a while. It is possible to see in map in my case that watch measured few hundreds meter circulating around place where i had to stop. It is probably when GPS signal is bad and watch don’t know your exact position but it jumps in circle 10meters around you. I would like to use autopause, but it is useless with hiking because if you go slower than 3km/h it will pause recording. But i walk slower when there is steep climb.

DMytro

@sartoric I would have paused more often if SA would visualise the pauses and their duration. Right now by pausing you loose track of ‘real time’ you need to cover a distance, which is crucial for future planning.

sartoric

@dmytro said in GPS Accuracy:

@sartoric I would have paused more often if SA would visualise the pauses and their duration. Right now by pausing you loose track of ‘real time’ you need to cover a distance, which is crucial for future planning.

Well, it depends on the point of view
I mean, I usually pause the activity to have the real duration, the time spent walking.
Maybe the next time I won’t pause, maybe I’ll pause more … but at least I know how much it takes to go from A to B without stopping

but this is for sure OT

DMytro

@sartoric yeah, I’d like to have both metrics. And maybe a graphical representation would help as well.

Stefan Sheriden

I hadn’t realised there was auto pause, I’ll try that next time. I’m optimistic that will solve the problem

Tomas5

@stefan-sheriden it will work if you walk fast enough.

Stefan Sheriden

@tomas5 my previous cheap smart watch had pause enabled by default and it was quite good at accurately recording distance so hopefully tracking with auto pause on my new Peak 9 will work.

My next planned walk is next Tuesday. I’ll take a rucksack mounted gps with me to compare accuracy.

freeheeler

@stefan-sheriden
or you plan a route, know exactly the distance as planned on the map, follow it strictly and you’ll see the difference to the map without the potential uncertainty of the deviation of the other device?
anyway, enjoy your peak

zhang965

yes, my S9P can provide very huge distance gap.

for the same route 10K, I’ve got + 800m to -800m difference.

Stefan Sheriden

@freeheeler Most of the time I will be joining a ramblers walk led by someone else. Quite often I will be leading. People do compare distance at the end of the walk. It was a little unsettling that my expensive Suunto watch compared unfavourably but I’m hopeful that have auto pause will resolve.
I also need an accurate mileage when walking out a walk that I will be leading. But I guess for those purposes I will still have the option of using the route recorded on my phone using Komoot if the watch is still inaccurate

freeheeler

@stefan-sheriden
I never use auto-pause and when I first got my S9B, I purposely did not pause my activity when we had a rest.
The track then looked like this…
the watch received a firmware update soon after and when doing short rests like that, the track doesn’t go that wild anymore and does not add up extra distance.
that’s the experience I have with not pausing during activities

sartoric

Do not forget that this is anyway related to GPS signal.
If it’s bad, it’s bad … it doesn’t care how expensive is the watch

Stefan Sheriden

Unfortunately non of the suggested solutions worked. The Peak 9 still overstated the overall distance compared to my phone and the track when loaded into mapping software and compared to everyone else’s recordings.

As accurate recording of tracks while walking is important to me I have returned the watch for a refund and will try a different make.

Thanks for your helpful responses to my original post. Disappointing I had to give up on the Peak 9 as apart from this I did like it.

sartoric

@stefan-sheriden
Out of curiosity … what’s the difference of the distance (from watch) compared with a planned route ?
I don’t mean the mapping software distance of the recorded activity, but just a planned (drawn on map) one

Stefan Sheriden

@sartoric I didn’t get round to comparing with a planned route. I was just comparing routes led by other people so tracking not navigating.

sartoric

@stefan-sheriden
So you don’t really know if the distance was wrong, isn’t it ?
… just from a “debug” point of view

That said , you returned it and you’re happy , so it’s ok

Stefan Sheriden

@sartoric I have enough experience of tracking walks to know that the watch was overstating tracks every time I used it.

MarcW

Also just one point to be wary about, if you are downloading routes that were recorded by different people/devices, they could have some of the same issues of poor GNSS, and as a result, when you import that route it could be +/- from the reality.

freeheeler

@stefan-sheriden
we used to ask for activity links. if you don’t mind sharing both activities publicly (S9P and phone recording from the same day), place the links in this thread and we could have a look on the track and make ourselves a picture of what the issue could be.