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All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 30-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours.
Apple Watch warranty extends up to 3 years with new AppleCare+. Buyers of the company's new smartwatch have a little extra insurance to ease the pain of spending hundreds or even thousands of dollars on a new digital timepiece. Apple Watch can cost as little as $350 or as much as $17,000.