However, [Ludwin] noted that resting heart rates often settle somewhere near 60 bpm on average. Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge!

Google today detailed its research into audioplethysmography (APG) that adds heart rate sensing capabilities to active noise canceling (ANC) headphones and earbuds “with a simple software ...

When both Powerbeats Pro 2 earbuds are placed in the ears, and heart rate monitoring is active, Apple says LED optical sensors pulse at over 100 times per second to measure heart rate via blood flow.