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Apple Watch with cellular.
Stay connected when you’re away from your phone.
Apple Watch Series 5 and Series 3 with cellular allow you to make a call, send a text, and stream Apple Music from your wrist — all without your phone. And now you can complete a call to emergency services almost anywhere in the world, just by pressing and holding the side button1. To cover the LTE and UMTS bands used around the world, there are two separate models for Apple Watch Series 5, and three for Apple Watch Series 3.2 They have been optimized for use in the country of purchase, and not all models work in all countries or regions. There is no single model that supports roaming worldwide.