In a world of increasingly elaborate fitness gear, Whoop hones in on the original promise of the fitness tracker: optimizing your workouts. Both a data analysis service and a physical device, Whoop delivers bountiful biometrics and analysis for athletes and dedicated fitness enthusiasts before, during, and after exercise through a dedicated fitness tracker you wear on your wrist and a companion app on your smartphone. The company’s latest device, the Whoop 4.0 fitness tracker, is more compact than previous generations…
