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 ...
Metro rail News14 小时
Apple on sale phone ecg
A comparison of manual electrocardiographic interval and waveform. How to Use Apple Watch ECG Feature Effectively Beebom.