The Whoop doubles down with its pie chart system, detailing said recovery, your physical strain score, sleep performance, and ...

My weekly strain levels in the WHOOP app—clearly, I work a desk job. The strain feature is unique to WHOOP—it calculates how much stress you're putting on your body throughout the day.

Unlike many devices that focus on step counts and calorie estimates, Whoop offers a deep dive into health metrics. It tracks recovery, strain, and sleep in astonishing detail, giving users actionable ...

The Whoop doubles down with its pie chart system, detailing said recovery, your physical strain score, sleep performance and heart rate variability (HRV) – the millisecond variations between ...