All Apple Watch models feature Bluetooth and Wi-Fi. Apple Watch Series 3 (GPS) also features built-in GPS that works independently of your iPhone for distance, pace and route mapping in workouts.
Feature
– Silver aluminium case
– Built-in GPS and GLONASS
– Faster dual-core processor
– W2 chip
– Barometric altimeter
– Capacity 8GB
– Heart rate sensor
– Accelerometer and gyroscope
– Water resistant 50 metres
– Ion-X strengthened glass