Check the Warranty Using the Apple Support App
The Apple Support app is an easy way to see information about all of your Apple products associated with an Apple ID, including your devices’ warranty status.
Check Your Warranty Status Online
Apple also makes it easy to look up your warranty status online using your device’s serial number. Find your device’s serial number through the Apple Support app or your Watch app, and then visit Apple online to check your warranty status.
Find Your Serial Number With the Apple Support App
Find Your Serial Number via the Watch iPhone App
The Apple Watch app on your iPhone gives you another quick way to locate your device’s serial number.
Check Your Apple Watch Warranty Online With Serial Number
Now that you have your serial number, visit the Apple Watch warranty center online.