Answer a call from your surfboard. Ask Siri to send a message. Stream your favourite songs on your run. And do it all while leaving your phone behind. Introducing Apple Watch Series 3 with cellular connectivity. Now you have the freedom to go with just your watch.

Battery Life Up to 18 hours Chip W2 chip Dimensions (H x W x D) 38.6 x 33.3 x 11.4 mm (38 mm), 42.5 x 36.4 x 11.4 mm (42 mm) Materials Ion-X strengthened glass, Composite back (GPS), Ceramic back (GPS + Cellular) Operating System watchOS 4 Processor Faster Dual-core processor Sensors Built-in GPS and GLONASS, Barometric altimeter, Heart rate sensor, Accelerometer and gyroscope Storage Capacity 8 GB (GPS), 16 GB (GPS + Cellular) Weight (Case) 26.7 g (38 mm GPS), 28.7 g (38 mm GPS + Cellular), 32.3 g (42 mm GPS), 34.9 g (42 mm GPS + Cellular) Wireless Networking Standard Wi-Fi 802.11b/g/n 2.4 GHz, Bluetooth 4.2