regarding the drain/battery management or whatever is related to the indication the watch provides … I am a bit disappointed… after letting the watch deplete and recharged it , I used and for 2 days it consumed like 2% per day - which gave me some smiles… (with oHR and notifications off though) … then I went for a run , using Suunto HR Belt, enabled the notifications and it lost 10% over 1 hour…
it is what it is , but it’s definitely not great