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mtbdudex

macrumors 68030
Original poster
Aug 28, 2007
2,879
5,201
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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mtbdudex

macrumors 68030
Original poster
Aug 28, 2007
2,879
5,201
SE Michigan
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
bdf14cf37391a8b2fcb96b4a7360c188.jpg
 

Drock1119

macrumors member
Oct 14, 2021
45
43
I’m curious to find out as well. I run and MTB with a Garmin Epix Pro and the AWU2.
 

BillGates1969

macrumors 68000
Sep 11, 2008
1,811
3,714
Poole, UK
You may want to ask over at the ‘workoutdoors’ thread. The developer is on there and really helpful.

 
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mtbdudex

macrumors 68030
Original poster
Aug 28, 2007
2,879
5,201
SE Michigan
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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PaladinGuy

macrumors 68000
Sep 22, 2014
1,687
1,093
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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