The Apple Watch is a great device for a lot of things, most notably fitness. Just like other smartwatches and fitness bands, the Watch can measure your heart rate and record fitness sessions, relaying all the data back to the iPhone and the other health-related apps you have installed. In fact, it turns out the Apple Watch has a highly accurate heart rate sensor, making it a great tool to quickly measure heart performance.
And data from one health app reveals the Watch’s key health features are already changing for the better the lives of people who’re using them to better monitor their health.
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