Watch Wifi and Bluetooth: Bluetooth 4.2, Wi-Fi (802.11b/g/n 2.4GHz)
Chip: W2 chip
Splash, Water and Dust Resistant: 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.