The Frontier X2’s accurate metrics and helpful screen more than make up for its busy app.

I pitted the Apple Watch Series 12 against the Garmin Forerunner 570.

Before you decide to click away, thinking we’re talking about some heart rate monitor that connects to a display using WiFi, wait! Pulse-Fi is a system that monitors heart rate using the WiFi signal ...

Smart rings use sensors to track sleep, heart rate and recovery, but how accurate are they compared with smartwatches?

The MAX30105 is an optical sensor capable of a great many things. It can sense particulate matter in the air, or pick up the blinking of an eye. Or, you can use it as a rudimentary way to measure your ...

Garmin gives you more ways to set your zones than most brands do. Spend 10 minutes figuring out which method your zones are ...

Not yet sold on smartwatches for exercise tracking? Use this monitor instead (and get it for 20% off right now).

The true nature of 'systematic error due to placement' that contaminates daily health management data, and a statistical ...

A heart rate monitor may be the key to unlocking your fitness goals. That’s because heart rate is a reliable indicator of your exercise input—it reflects the effort applied to every workout. Keeping ...

This simple circuit enables you to listen to your heartbeat, for instance, while you are exercising. The transducer used for detecting the pulse is an electret microphone, X1 in the diagram. The model ...

In addition to more effective noise cancellation and a more robust, ergonomic housing, the Apple AirPods Pro 3 sport a brand-new heart rate sensor. An initial test now shows that the earbuds can also ...