While Bluetooth heart rate monitors can meet the needs of most people—pairing the monitor with a smartwatch, say—ANT+ allows you to connect the heart monitor to multiple devices at once.

You can learn a lot by listening to your heart, which is where the best heart rate monitors come in. Whether you’re at the gym, out for a run or in for a swim, the pulse sensors below will never miss ...

The Geek Pub guide will help get you started with an Arduino pulse sensor. While sensors like this are reliable, it's worth keeping in mind that your heart rate can tell you a lot of different things.

You may be interested in a project published to the Hackster.io website earlier this year providing instructions on how to create a simple wearable heart rate monitor using an Arduino Nano R3.

The Samsung Galaxy S5 phone comes with a built-in optical sensor to sense fingertip pulse and was accurate even at a heart rate of 190.

Internally his heart rate monitor is using an Arduino Pro Mini, a small OLED screen, and a turn-key pulse sensor which was originally conceived as a Kickstarter in 2011 by “World Famous ...

Optical heart-rate monitors are the most common pulse sensors in wearables. Most of them glean heart-rate data through "photoplethysmography" (PPG), or the process of using light to measure blood ...

He wanted to do a little more with the equipment so he ditched the watch and built an Arduino-based heart rate monitor. He’s still using the chest strap and was happy to find that SparkFun sells ...