I charge my gen 1 Apple Watch for ~45 minutes before bed every night and in a year and a half have only run out of battery during the day twice. I use it for sl

I charge my gen 1 Apple Watch for ~45 minutes before bed every night and in a year and a half have only run out of battery during the day twice. I use it for sleep tracking every night. The watch charges so quickly that dropping on the charger at 9pm for a bit is all I ever need.