I'll admit it: The Whoop band intimidated me. It came into my orbit about six years ago, and I kind of wanted it to disappear. The fitness-tracking screenless wearable is geared heavily toward serious ...

For the better part of a decade, Whoop sold itself as a secret weapon for serious athletes. LeBron James was convinced to slap on the company’s fitness band in Whoop’s first year. Michael Phelps came ...