Whoop fitness fans have become popular with professionals in recent years, and are a great gift for casual golfers as well. The wearable band tracks things like heart rate variability — that is, the difference in heart rate between a person’s resting heart rate and when exercising — as well as other parameters such as temperature and blood oxygen levels. The data is fed back to the Whoop app, which provides advice on things that may need to be changed.
Whoop 4.0 is a new tracking system and launched in 2021. The redesigned design and upgraded sensors promise more accuracy than before, along with additional features. It must be said that these are not just golf aids, and to be most effective, they must be worn regularly both on and off the course, as Golf Monthly explains in its excellent review. However, with Justin Thomas and Rory McIlroy counting themselves as both cashiers and regular wearers, his status as golf’s most influential player seems unshakeable at the moment.
Whoop 4.0 is available for purchase on Amazon for $239.00, which includes a 12-month subscription to the service. After that time, additional monthly payments are required.