Does Apple Watch Series 3 Require iOS 13?

The current shipping Apple Watch Series 3 and 5 models require an iPhone 6s, SE, 7 or newer running iOS 13. It will Not pair with the iPhone 6 Plus or older.

What iOS is needed for Apple Watch 3?

Apple Watch Series 5 and Apple Watch Series 3 require an iPhone 6s or later with iOS 13 or later. Features are subject to change.

Is Apple Watch Series 3 supported?

Apple Watch Series 3 support continues for another year with watchOS 8. Apple Watch Series 3 is having a hard time updating to new versions of watchOS 7, but there’s good news for customers using the hardware first introduced in 2017. watchOS 8 will run on all Apple Watch models that support watchOS 7.