Garmin vivoactive 5 vs OnePlus Watch 3

“WearOS offers a lot as it really makes the watch into a tiny smartphone. But it has its costs to offer that. A simpler OS (as Tizen was) is really more suited for these relatively small devices with (compared to full smartphones) tiny tiny batteries - for obvious physics reasons with current battery tech. That is why the OnePlus watch 3/2 solution of offering dual boot is so smart an idea. Work with a more primitive but much leaner OS normally AND offer you the option to boot into WearOS when you need the fancy stuff. Or the other way round: Use with WearOS when frequent charging is not a problem, and boot into the leaner OS when you prefer prolonged stamina. IMHO **all** fancy smartwatches *ought* to have the option to dumb down so it was never more power-hungry than needed for the user's selected active features.”

“ok - that knocks fitbit out which is one of the better sleep options. Personally I would suggest looking at garmin (vivoactive 5 or 6 or forerunner 165 music are best current entry options due to good battery life and the abiltiy to load on your own MP3s (they also do a couple of other formats) and or offline playlists from subscirption services (assuming prepared to pay sub - can use amazon music, spotify, deezer or youtube music). There are also options where you can load MP3s (only) on some models from amazfit, coros, polar, suunto and huawei - so if you are ok with you own MP3s only might be worth looking at some of these options. If prepared to go for less battery life and have an android phone, then can maybe look at the ticwatch atlas / enduro and the oneplus watch 3 - these offer your own music and subscription services for offline playlists (same as garmin and other alternatives).”