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The Apple Watch is incredibly accurate at reading your heart rate

Apple Watch vs. Mio Alpha Heart Rate

Like many wearable devices that can track fitness, the Apple Watch can register your heart rate and record readings. Apple already explained the way its heart rate sensor is supposed to work by offering tips on how to make sure it registers your heart rate. Consumer Reports has further revealed the Apple Watch does an oustading job at reading heart rates when compared with the Polar H7 heart rate sensor.

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Sunset Lake Software engineer Brad Larson has compared the Apple Watch and the Mio Alpha, a very accurate chest strap monitor, and has extracted the readings from both devices following a run.

“Extracted the raw Apple Watch HealthKit heart rate samples after a run and compared it to a [heart rate] monitor I had on,” Larson wrote on Twitter, posting a chart to highlight his findings.

As seen in the following chart, the Apple Watch is incredibly accurate.

“Aside from the Apple Watch capturing heart rate once per 5s, and the Mio Alpha every 3s, the readings are nearly identical. Impressed,” he added.

Wrist tattoos might pose major problems to the Watch’s heart rate sensor, an issue Apple has already acknowledged but one that can’t be fixed.

Chris Smith started writing about gadgets as a hobby, and before he knew it he was sharing his views on tech stuff with readers around the world. Whenever he's not writing about gadgets he miserably fails to stay away from them, although he desperately tries. But that's not necessarily a bad thing.

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