[cassianoleal]

Agree. I have a Garmin and I charge it most days for 10-15min when I'm showering (most because every now and then I take it to the shower for a wash). It's usually between 80 and 90% charged this way.

One caveat is that notifications are quite basic and there's no way to respond to them - it's push only. They also always get sent to the watch straight away even if they're set to notify once a day (this is probably an iPhone limitation - no idea how it works on Android).