What’s better than a regular pair of wireless headphones? Maybe a multi-sport headset with sensors to measure your heart rate, speed, distance, cadence, calories, and laps and provide you with smart coaching. Kuai comes with training plans for running, swimming, and cycling.
Kuai saves you from having to carry multiple devices to monitor your fitness activity. It is waterproof to 3 meters and has up to 7 hours of battery life.[where to get it]