The Polar Beat app (free for iOS and Android) provides free tracking and in-workout training. Select from more than 100 types of exercises, including running, biking, kitesurfing, and judo.

The CooSpo H808S chest strap has its own app (CoospoRide), and it can also connect to various third-party fitness apps like Polar, Wahoo, Endomondo, UA Run, Garmin, Peloton and more.