AirPods Can Measure Your Heart Rate, but Are They Accurate?

My hair is soaked. Sweat pours down my face. Pedalling madly at my first-ever cycling class at age 63, I am exhilarated and appalled. This is what vigorous exercise feels like?

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CNET Labs testing found AirPods Pro 3 averaged 1.67% heart rate error vs a chest strap, second only to Apple Watch Series 11 at 0.98%.

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One of the flagship additions to the AirPods Pro 3 was a built-in heart-rate sensor, which allows users to track more than 50 workout types. But how accurate is it?

That’s where pulse oximeters come in. These small devices measure your heart rate and SpO₂. They give you another way to understand how your body responds during exercise and recovery. Also, they may ...