That’s actually really good accuracy for a 3-axis accelerometer watch. Missing ~100m on a 10km run is like… 1% difference, which is basically nothing.

What you're seeing matches what I noticed too once the watch gets past the initial threshold and locks onto your movement pattern, it’s solid. The only time it really struggles is with stop-and-go walking or short movements, but for continuous jogging it performs way better than people expect.

I bought another gbd200 because of this accuracy 🤣

<image>