Whoop Inc., the maker of popular screen-less fitness bands, is facing a backlash from subscribers upset that it’s charging an upgrade fee for the new models after previously pledging not to do so. The ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. I've often said that ...

The Fitbit Air has emerged as a strong contender in the fitness tracker market, directly challenging the Whoop with its combination of affordability and accessibility. Unlike the Whoop, which targets ...

Fitbit Air offers $99 sleep-first tracking, Pixel Watch 4 pairing, and a cheaper Whoop alternative, but Google’s AI coaching ...