Stay connected in style with the 42mm GPS and cellular-equipped Apple Watch Series 3, which comes with a space gray aluminum chassis. Designed for users looking for the next generation of connectivity, Apple's Watch moves your iPhone's apps and functions to your wrist, so you can do more while leaving your phone in your pocket.Apple Watch connects to your iPhone via Bluetooth 4.2 and displays notifications, apps, and more on its 1.5" display. It can also connect directly to the Internet thanks to 3G and 4G LTE cellular compatibility and 802.11b/g/n Wi-Fi. The internal battery lasts for up to 18 hours of normal use and is recharged with an included inductive magnetic charger.Cellular Connectivity: The cellular-equipped Watch Series 3 uses its screen as an antenna, connecting you to wireless networks without the aid of your iPhone. Leave your iPhone in the car, at home, or in your gym locker and stay connected, with 4G LTE to keep notifications rolling in from your favorite apps. Your phone number carries over so you don't have to give out a new number to receive calls and text messages from your contacts.Note: Requires service plan to activate. Not compatible with all wireless networks in all countries. May result in additional charges to your wireless bill.Apps Enjoy the iOS apps you love on your iPhone, tailored for Apple Watch. Notifications Leave your phone in your pocket and view notifications on your wrist. Apple Watch displays alerts from your iPhone so you can respond or dismiss them at will. Its Taptic engine gives you a gentle tap on your wrist or an audio cue when notifications come in.