The Whoop Performance Strap 3.0 ($288 for a one-year membership) is a game changer for those who want to optimise their training and recovery. It analyses recovery, strain, and sleep to determine how hard you should push yourself each day based on the data collected. The strap lets you know how much sleep you need depending on your daily performance goals, and it provides in-depth information on the type of training you partake in and the benefits of that style of training.