17 Gadgets Fitness-Lovers Will Love to Unwrap This Year

The Whoop Performance Strap 4.0 ($288 for a one-year membership) is a great tool for anyone who wants to truly optimize their training and recovery. It analyzes 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. (PS: you get the Whoop 4.0 along with the membership, which also gives access to the Whoop app.)