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Dozens of big companies, upstarts as well as traditional ones are creating smartwatches to deliver notifications, apps and more to your wrist. Although features and designs vary, the main appeal of a smartwatch is that it can save you time. Whether you want to quickly check incoming messages or control your music, you'll be able to glance down at your wrist instead of having to whip out and unlock your phone. Some smartwatches even work independently of a phone, but most are designed as companion devices.
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