I only have stock apps on my AWU1 and my iPhone 15 PM was already on iOS 17.1 when I updated to watchOS 10.1 and I experienced everything folks are describing with battery drop (about 20+%/hr), taking 2+ hours to charge to 100% (regardless of if its dead state or 50%), and rebooting the watch (both button and power off and a hard restart) led to 5-12 minute reboots (honestly thought it was going to be bricked).

I tried: -My normal watch faces (Modular and Modular Ultra) which do not use a weather or HR complication

-Numerals Duo (attempt to have a watch face that does nothing really)

-Toggling optimized charging off and seeing, then reverting to having it back on (as has always been the setting, no difference)

-An Apple USB-C power brick and Apple’s cable that comes with the AWU1 were the charging mechanism (and have been since I got this)

-It had 4-5 reboots during this process (at least 2 power offs and 2 hard powers so may only be four, but the last one took 12 minutes before it was back up and letting me enter my PIN, I haven’t rebooted since that one)

The battery drained remain the same.

Before sleeping last night, I set it on the charger to get to 100% before bed in hopes it’d last me through since I like sleep tracking and alarm and it died the night of the update (100% when I went to bed at 9PM, dead by 3AM when I woke up).

Last night, it was at 100% when I put it on before bed (8:30PM-ish), and I woke up to it at 70% (which seems like a faster drain than normal, but not as horrendous as what I experienced the day of and the day immediately after the update).

I charged it during getting ready this morning and it went to 99% in about 20-30 minutes (about how long it takes me to get ready). I took it off at 99% at 6:37AM and it’s 10:19AM right now at 94% so maybe it’s ok now?