Is heart rate monitoring on earbuds actually viable? I tested two pairs, and here's my advice
Powerbeats Pro 2 and AirPods Pro 3 both add in-ear heart-rate monitoring, share H2 chip and iOS integration, but differ in form factor and suitability.
Apple AirPods 4 are discounted to $89 on Amazon, featuring an updated H2 chip, adaptive EQ, a slimmer case, improved battery runtime, and water resistance.