With continuous heartbeat sleeping sp02, sleep tracking, WiFi, Bluetooth, lift to wake (occasional aod), around 1to 1 1/2 hour walk recorded a day (+ normal steps through the day), some calls/MSG's/notifications, emails etc, contactless payments. I get about 2to3 days, although I tend to charge it once a day or every other day at the most.
It's fully charged now and reporting 3 days 13 hours left in the battery section
Edit : mine is the Bluetooth version 46mm