GPS

Over 30% larger display²

Electrical and optical heart sensors

Digital Crown with haptic feedback

50% louder speaker²

S4 SiP with faster 64-bit dual-core processor

Improved accelerometer and gyroscope for fall detection

Swimproof³

watchOS 5

Aluminum case

Selection may vary; see a sales associate for available models. Apple Watch Series 4 (GPS) requires an iPhone 5s or later with iOS 12 or later.

¹Apple Music requires a subscription.

²Compared with the previous generation.

³ISO standard 22810:2010. Appropriate for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities not recommended.