You might be hooked up to the monitor only as long as you're in the hospital. But telemetry monitors can be used to gather data on your heart for up to 30 days.

The interior of the waterproof band (up to 30 meters) even features silicone ... their resting heart rate throughout the day. Others need heart rate monitoring for sleep-tracking purposes.

New York City-based NYU Langone hospital had the lowest 30-day mortality rate for heart attack patients in the U.S. between July 1, 2020 and June 30, 2023, according to CMS data released July 31.

When used correctly, the best heart rate monitors can help you unlock a new level of athletic performance, no matter whether you're cycling, running, or performing any other endurance sport.