Apple Watch Series 4 (GPS) 40mm
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
Apple Watch Nike+ Series 4 (GPS) 44mm Space Gray Aluminum Case with Anthracite/Black Nike Sport Band
GPS
Over 30% larger display³
Electrical and optical heart sensors
Digital Crown with haptic feedback
50% louder speaker³
S4 SiP with faster 64-bit dual-core processor
Improved accelerometer and gyroscope for fall detection
Swimproof¹
watchOS 5
Aluminum case
Nike Sport Band or reflective Nike Sport Loop
Exclusive Nike watch faces
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.
¹ISO standard 22810:2010. Appropriate for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities not recommended.
²Apple Music requires a subscription.
³Compared with the previous generation.