![Chest Straps, EKG, Watches
| WIRED](https://media.wired.com/photos/658468f243e918a2752b3cf7/191:100/w_2580,c_limit/Gear-Coros_HR_Monitor.jpg)
Chest Straps, EKG, Watches | WIRED
Those days of getting a heart rate reading only when you visit your physician are truly a thing of the past. You don’t even have to spend big money or leave your home to get a sense of your heart rate during exercise or at rest. The rise of optical and EKG (electrocardiogram) sensors that…