Refurbished Apple Watch Series 2, 38mm

Dual-core processor

Built-in GPS

Water resistant 50 meters

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

Bluetooth 4.0

Heart rate sensor

Accelerometer

Gyroscope

Ambient light sensor

Second-generation OLED Retina display with Force Touch (2x brighter)

Built-in rechargeable lithium-ion battery

Up to 18 hours of battery life

Magnetic charging cable

Apple Watch requires an iPhone 5 or later.

Apple Watch Series 2 has a water resistance rating of 50 meters under ISO standard 22810:2010. This means that it may be used for shallow-water activities like swimming in a pool or ocean.

However, Apple Watch Series 2 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

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. Battery life varies by use, configuration, and many other factors; actual results will vary.