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mtbdudex

macrumors 68030
Original poster
Aug 28, 2007
2,909
5,373
SE Michigan
I've had my AWU2 since Dec-2023, truly love it.
However I'm perplexed by GPS accuracy: AWU2 vs iPhone 14Pro, seems AWU2 is around 6% less than iPhone 14Pro.
Below are screen shots with data.

These are all MTB bike data; I start/stop both same time, AWU2 is left wrist facing up (top of wrist), iPhone is mounted to bike stem clear view to sky.
I use the app TrailForks, its GPS settings are as shown; tick every 1 second for 1m min distance.
I can't find a setting spec for the AWU2 in any settings, on AWU2 or the iPhone watch app.

With the Apple ads stating "precision dual-freq GPS provides accurate location for calc distance, pace, and route maps" I'd expect the AWU2 to be much close, 98-99% accurate as the iPhone.

Does anyone know if Apple is "crippling" the GPS accuracy by less frequent sampling time or distance wise??
I'd like user settings to balance trade-off of GPS vs battery is that's the rationale.
Mike R

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Does anyone know Apple Watch gps sampling rates while using workout app, specifically cycling?

the below is Trailforks and it’s settings options, I’d like to know Apple Watch settings
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I’m curious to find out as well. I run and MTB with a Garmin Epix Pro and the AWU2.
 
You may want to ask over at the ‘workoutdoors’ thread. The developer is on there and really helpful.

 
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You may want to ask over at the ‘workoutdoors’ thread. The developer is on there and really helpful.


I spent 15 minutes looking thru that thread… wow .. truly thx I’ll ask there , and possibly get that app
 
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I would trust the Ultra over your phone. I’m not certain, but I don’t think that the iPhone has dual frequency GPS.
 
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