The Polar ft4 heart rate monitor is a fantastic and simple device for keeping the heart rate in check during a workout. It’s user-friendly, measures heart rate in beats/minutes, and is water-resistant at 30m. The device is very accurate when chest straps are used. It detects calories burned and is compatible with GymLink.
Measures heart rate accurately
The application is simple to use
No smart notification
No round-the-clock tracking