The Apple Watch Series 3 Cellular has been created to be your health & fitness companion. This third-generation Apple Watch has great coaching features, is water resistant to 50 metres & is 70% faster than previous models, thanks to its new S3 dual core chip. You’ll be better motivated & connected than ever before. Super cellular Even when you’re away from your iPhone, you can still stay connected thanks to your Apple Watch Series 3 Cellular. Thanks to Apple’s clever design, you can make calls or send text directly from your watch. You’ll never miss that important message again. (Please note: a cellular service is required for this feature to operate.) Great GPS The handy, built-in GPS measures your workout accurately, so whether you're going for a swim, run or a ride, you can leave your iPhone at home. Distance, speed & pace are all precisely recorded for you, ready for when you get back home to review your route on your iPhone. in addition, your Apple Watch Series 3 comes with a barometric altimeter, so your new wrist-based coach can keep count of the amount of hills you’ve climbed & descended. Healthy hearts No matter if you’re walking, resting running or swimming, Apple Watch Series 3 will measure your heart rate, thanks to its enhanced heart rate monitor. Utilising this information, your Apple Watch Series 3 will estimate just how many calories you’ve burned & will helpfully inspire you to move a little more. Keep time Apple Watch is an incredibly accurate timepiece, designed to sync with your iPhone & give you the time accurate to within 5 milliseconds. It's also connected to your calendar, your contacts & schedule, helping it deliver timely updates that are relevant to you.