Apple Watch Series 3 Nike+ GPS + Cellular Smartwatches 38mm

Space Gray aluminum case
Black/Pure Platinum Nike Sport Loop
Nike Sport Loop with 38mm case fits 130–200mm wrists
Requires an iPhone 6 or later and iOS 11 or later
Built-in GPS and GLONASS
Faster dual-core processor
W2 chip
Barometric altimeter
Capacity 16GB**
Heart rate sensor, accelerometer, and gyroscope
Water resistant 50 meters***
Ion-X strengthened glass
Ceramic back
Wi-Fi (802.11b/g/n 2.4GHz), Bluetooth 4.2
Up to 18 hours of battery life****
watchOS 4
1m Magnetic Charging Cable
5W USB Power Adapter

*Apple Watch Nike+ Series 3 (GPS + Cellular) has all the same features as Apple Watch Nike+ Series 3 (GPS), well as built-in cellular. It gives you the freedom to send and receive text messages, answer phone calls, and receive notifications even when you don't have your iPhone with you.

**1GB = 1 billion bytes; actual formatted capacity less.

***Apple Watch Series 3 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 3 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

****Battery life varies by use and configuration; actual results will vary.