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
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.