Hello
My Apple Watch has problem the charger isn’t stay long
what should I do?
Question marked as
Perhaps this article will help:
If your Apple Watch won't charge or it won't turn on - Apple Support
If the battery drains too fast after an update, see all the replies to:
Update 6.2.1 Battery Draining Too Quickly… - Apple Community
FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update.