Myzone is an innovative wearable heart rate based system that uses wireless and cloud technology to accurately and conveniently monitor physical activity. Myzone delivers a fully connected solution for anyone who wants an accurate (equiv. to an EKG at 99.4%), gamified and motivating wearable experience. Myzone monitors heart rate, calories and time exercising that convert into Myzone Effort Points (MEPs), with a focus on rewarding effort rather than fitness. Need a replacement strap for your unit? Purchase a new one today available in standard size and XLarge.