I would like to see far more detailed heart rate data too.

Seems to be ok when static but irregular when moving. I've had the 200 BPM warning (in Chinese) when walking, and playing tennis.

Yes, full charge this morning 8 hours later 14%. Ambient mode and tilt to wake off. I was using my phone for map navigation for 2 hours. The weather app on the watch takes it's data from the phones location? Surely this couldn't be responsible for the large battery drainage? Last week I would get ge...