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Apple has introduced its Watch Series 3, adding built-in cellular, allowing users to stay connected, make calls, receive texts even without iPhone nearby. The third-generation Apple Watch is a health and fitness companion with intelligent coaching features, water resistance 50 meters and a new barometric altimeter that measures relative elevation.

Apple Watch Series 3 comes in two models, one with GPS and cellular, and one with GPS, both featuring a 70% faster dual-core processor and new wireless chip.

The combination of cellular and watchOS 4 will allow Apple Music users to stream 40 million songs right from their wrist.

Apple Watch Series 3 (GPS + Cellular) features a full LTE and UMTS cellular radio that switches to cellular when it is away from iPhone. The watch shares the same number as iPhone so there is no need to provide an additional number to family, friends or colleagues, according to Apple. Customers have the ability to make cellular calls directly with Apple Watch Series 3 (GPS + Cellular) and, when paired with AirPods, enjoy a seamless and fully wireless experience.

Apple also developed an antenna design that uses the display itself as both a transmitting and receiving element for LTE and UMTS, while introducing a built-in eSIM that is over one-hundredth the size of a traditional SIM card.