The Whoop 5.0 has several medical-minded tools, like ECG and blood pressure monitoring. Here's how I actually used them.

Apple Watch on your wrist, Oura ring on your finger, Whoop band on your arm—when does it end?

Tennis players at the Australian Open, including Alcaraz and Sabalenka, were instructed by umpires to remove under-wrist WHOOP trackers during matches, despite previous tournament allowances. The ITF ...