The MYX II is the latest model of the MYX bike. The MYX II has additional features, including an upgraded sensor and heart rate monitor to track metrics such as heart rate, speed, cadence, and distance. The MYX II is also equipped with an 8-megapixel camera and a 20-watt, Bluetooth-enabled speaker. You can pair your Apple Watch with the tablet to use it as a heart rate monitor.