Whoop

Whoop is a wearable health and fitness tracker built around recovery, strain and sleep. Its strap has no screen: it is worn continuously on the wrist or body, collects heart rate, heart rate variability, skin temperature, blood oxygen and movement data, and presents its analysis in a companion app. The product philosophy is coaching rather than counting. Instead of steps, Whoop gives a daily Recovery score that estimates how ready your body is to perform, a Strain score that measures cardiovascular load from workouts and daily life, and detailed sleep analysis with recommendations on how much sleep you need. The idea is to help users balance training and rest, which made it popular among professional athletes, endurance sports enthusiasts and people interested in performance optimisation. The screenless design keeps the band lightweight and distraction-free and supports long battery life, while charging can be done on the wrist with a battery pack. Newer hardware and memberships have added features such as health monitoring for heart rhythm and blood pressure insights in some regions, stress tracking, women's health features, and an AI coach that answers questions about your data in plain language. The business model is subscription-first: the hardware is included with a membership rather than bought outright, so the cost is ongoing. Supporters see that as paying for continuous software and coaching; critics see a recurring fee for a fitness band. Like all consumer wearables, metrics are estimates and not medical diagnoses. Alternatives include Oura, a smart ring with similar sleep and readiness focus; Garmin watches with Body Battery and training readiness plus GPS; Apple Watch for an all-round smartwatch; Polar and COROS for training-focused watches; and Fitbit for affordable everyday tracking. Choose Whoop when you want continuous recovery and strain coaching without a screen and are comfortable with a membership model.