Exercising at your target heart rate with a heart rate monitor is the ideal way to enhance your workouts. Workout efficiently with Wahoo TICKR X Heart Rate Monitor, it captures real-time heart rate, burnt calories, and training zones. Just connect your smartphone or any compatible device with a well-matched fitness app. Designed with a built-in memory, giving you the freedom to train without a phone. Equipped with ANT+ compatibility and Bluetooth 4.0 that allows TICKR X to connect to most smartphones and other compatible electronic devices. It automatically counts the number of your reps in high-intensity circuit workout when paired with Wahoo Seven Minute Workout App or Pear Sports App. It is also compatible with other Apps like Wahoo RunFit and other 50 mobile apps including MapMyFitness, Nike+ Running, Runkeeper and Apple Health.