WORKS WITH EVERYTHING: Polar HRM works with many sports and smart watches (Polar, Garmin, Apple, Suunto, etc.), Polar Beat, fitness apps such as Strava and Nike, and ALL HRM compatible Cardio Equipment
SUPREME ACCURACY: Widely recognized for its top precision by many sources, Polar H10 is the most accurate heart rate sensor in Polar’s history. Polar H10 provides top quality heart rate measurement and it’s the choice of many pro athletes.
CONNECTIVITY: Bluetooth, ANT+ and 5 kHz provide an excellent variety of connection options (e.g. with Peloton). You can use Bluetooth and ANT+ connections simultaneously as well as two Bluetooth connections simultaneously.

Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your route
With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise.Operating temperature: -20° to 60° C
Use 24×7 heart rate to track resting heart rate & better measure calorie burn. Syncing to mobile devices requires Bluetooth LE and internet connection. Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later