Apple's Beats Powerbeats Pro 2 rumored to beat AirPods to ear-based heart rate monitoring
It seems like Beats Powerbeats Pro 2 are finally on their way, and they'll probably be packing a new fitness feature ...
来自MSN10 个月
Polar H9 heart rate monitor review: A great budget fitness accessory for iPhone and Apple Watch
The Polar H9 is Polar’s cheapest heart rate monitor chest strap and uses an ECG sensor like its pricier H10 monitor to promise accurate heart rate data during workouts. The H9 connects over ...