Apple Watch and iPhone compatibility

Find out which versions of iPhone, iOS, and watchOS work with your Apple Watch.

Apple Watch Model

Compatible iPhone

Compatible iOS

Compatible watchOS

Series 10

iPhone XS or later

iOS 18 or later

watchOS 11 or later

Ultra 2

iPhone XS or later

iOS 17 or later

watchOS 10 or later**

Series 9

iPhone XS or later

iOS 17 or later

watchOS 10 or later**

Ultra

iPhone 8 or later

iOS 16 or later*

watchOS 9 or later**

Series 8

iPhone 8 or later

iOS 16 or later*

watchOS 9 or later**

SE (2nd generation)

iPhone 8 or later

iOS 16 or later*

watchOS 9 or later**

Series 7

iPhone 6s or later

iOS 15 or later*

watchOS 8 or later**

Series 6

iPhone 6s or later

iOS 14 or later*

watchOS 7 or later**

SE (1st generation)

iPhone 6s or later

iOS 14 or later*

watchOS 7 to watchOS10.6.1

Series 5

iPhone 6s or later

iOS 13 or later*

watchOS 6 to watchOS10.6.1

Series 4 (GPS + Cellular)

iPhone 6 or later

iOS 12 or later*

watchOS 5 to watchOS10.6.1

Series 4 (GPS)

iPhone 5s or later

iOS 12 or later*

watchOS 5 to watchOS10.6.1

Series 3

iPhone 6s or later

iOS 11 or later*

watchOS 4 to watchOS 8.8.1

Series 2

iPhone 5 or later

iOS 10 or later*

watchOS 3 to watchOS 6.3

Series 1

iPhone 5 or later

iOS 10 or later*

watchOS 3 to watchOS 6.3

Apple Watch (1st generation)

iPhone 5 or later

iOS 8.2 or later*

watchOS 1 to watchOS 4.3.2

*Updating to iOS 18 requires iPhone XS or later.

**Updating to watchOS 11 requires iPhone XS or later with iOS 18 or later.

Learn more

Learn how to identify your Apple Watch model and identify your iPhone model.

Learn about Apple Watch and iPhone requirements for Family Setup watches.

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