Inaccurate fitness and sensor data readings

[Matt T]

I have a Series 4. Last year when I updated to watchOS 7.0 I was affected by the GPS tracking bug and eventually unpaired, reset and re-setup my Watch from it’s backup as per the since-deleted support document Apple shared.

Since doing that my Watch has recorded wildly inaccurate health and fitness data:

• My daily activity goal of 600 calories, which I would typically reach after a regular workday with about an hour of exercise, I suddenly started to achieve before lunch.
• My elevation readings are insane - while on hikes with my friends (one with a Series 3, the other with a Series 5, both at a similar level of fitness as me) their watches will record ~100m elevation gain while mine records ~350m.
• And stand detection is very poor. I happened to buy a standing desk a few weeks before resetting my Watch and initially my Watch detected my extra time standing just fine, but since the reset my Watch is detecting less standing than before I bought the standing desk. I’ve attached a screenshot from my Activity app showing an increase in standing minutes when I bought my desk and the new/current lower readings.

To fix this I’ve tried:

• Re-calibrating my Watch as per this support document
• Unpaired and erased my Watch again with watchOS 7.3 without restoring a backup, and re-calibrated again.
• Unpaired and erased my Watch again with watchOS 7.3, restored a backup taken before I upgraded to watchOS 7.0, and re-calibrated again.

But nothing has worked, and I’m out of ideas. Does anybody else have any suggestions? Thanks.

 

[mk313]

The only thing that jumps to mind on the calories/move goal is to make sure it didn’t somehow reset your weight to a different number. I’ve seen that happen to multiple people on the forums here after software updates

 

[Matt T]

Thanks for the suggestion but my correct weight is listed in the Health app, and has been updated several times since the reset.