Battery Life of Apple Watch SE
My Apple Watch battery dies after about 14 hours. It used to last much longer.
Apple Watch SE
Question marked as
Batteries will naturally degrade over time. Your watch not lasting as long could be that combined with newer features that inherently use more battery power.
For more information about the Apple Watch’s battery, see this:
Apple Watch Battery and Performance - Apple Support
For tips on how to maximize battery life, see this:
Batteries - Maximizing Performance - Apple