@Arie-Rahmadi for anyone who experience the same thing. I just delete my alarm and extend the DND period, and it solve the problem. Don’t really know which the actual culprit (alarm or DND) but it perfectly track my sleep today.
@Adrien-Housiaux
Did you already discharged completely (to the battery icon) and recharged, to be sure battery is calibrated ?
There are several discussion about this topic, I’m locking this one to avoid duplicates
@TombTomb Try resetting the Bluetooth and WIFI settings on the phone
This procedure deletes all connections and will require reconnecting to all networks
@tensing iOS or Android? I think there is a small issue with the backend providing firmware updates, it should be resolved soon (I managed to update 4 watches yesterday, I am having some issues today)