This is my battery life. HR 24/7 enabled, sleep tracking enabled, bluetooth notifications disabled, vibration disabled, tones in button off mode. I did use GPS for 10minutes. I had one indoor activity with HR for 20 minutes. Once per day i synchronised with suunto app. Every day a played with watch around 5-10 minutes. Backlight was off 99% of time.
So it looks i was too rush. Battery drop was fast only above 80% of battery. At around 80% i did soft reset. Maybe it helped to stop rapid battery drain.