AirPods Pro 3 heart rate sensor nearly matches Apple Watch in accuracy test
TL;DR
CNET Labs found AirPods Pro 3 averaged 1.67% heart rate error vs a Polar H10 chest strap, second only to Apple Watch at 0.98%.
Apple’s AirPods Pro 3 heart rate sensor averaged 1.67% error compared to a medical-grade Polar H10 chest strap in testing by CNET Labs, making the earbuds the second most accurate consumer heart rate device the publication has measured. Only the Apple Watch Series 11 performed better, averaging 0.98% error in the same test protocol.
The results, published by CNET this week, place AirPods Pro 3 ahead of every smartwatch and fitness tracker the lab has tested except Apple’s own watch. CNET’s methodology used a four-lap track protocol with the Polar H10 as the gold standard reference, a setup consistent with how exercise physiology labs validate optical heart rate sensors.
The AirPods Pro 3 use a photoplethysmography (PPG) sensor that fires infrared light at 256...
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