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The Apple Watch Ultra 2 and Samsung Galaxy Watch5 Pro side-by-side worn on wrists.
The best smartwatch offers a seamless extension of your phone with features that suit your needs.

Smartwatches are extensions of your phone for checking notifications, making calls, and sending texts, not to mention telling the time. Ideally, the best smartwatches are also powerful tools for tracking fitness and activities and monitoring health markers. The most important things to consider when choosing a new smartwatch are the features you'll use most and your phone's operating system.