Aluminum case with Sport Band

Dual-core processor

Splash resistant¹

Wi-Fi (802.11b/g/n 2.4Ghz)

Bluetooth 4.0

Heart rate sensor

Accelerometer

Gyroscope

Ambient light sensor

OLED Retina display with Force Touch

Ion-X glass

Built-in rechargeable lithium-ion battery

Up to 18 hours of battery life²

Magnetic charging cable

Apple Watch requires an iPhone 5 or later.

Classic Buckle, Leather Loop, Modern Buckle, Milanese Loop, and Link Bracelet bands are not water resistant.

¹Apple Watch Series 1 is splash and water resistant but not waterproof. You can, for example, wear and use Apple Watch Series 1 during exercise, in the rain, and while washing your hands, but submerging Apple Watch Series 1 is not recommended.

Apple Watch has a water resistance rating of IP67 under IEC standard 60529.

²Testing conducted by Apple in August 2016 using preproduction Apple Watch Series 1, Apple Watch Series 2, and Apple Watch Edition, each paired with an iPhone; all devices tested with prerelease software.

All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 30-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours.