Open the Find My app on your iPhone
Tap Devices
Select your Apple Watch
Tap Play Sound to locate it nearby
Check the map for its current or last known location
If needed, tap Directions to navigate to it
If your watch is offline, enable Notify When Found
Use Lost Mode if you think it is missing
Check common places like bags, pockets, chargers, and furniture
Retrace your steps to the last place you remember using it