Right now, the humble lithium ion battery is one of the biggest bottlenecks in consumer electronics, but a decade-old startup called Sila has taken a big step towards changing that. Sila enables ...

Boston fitness tech startup Whoop introduced its latest wristband devices on Thursday with new features that could appeal to a broader audience beyond the hardcore athletes who have favored the ...

Whoop initially captured my heart for being a buzzy, cool-looking wearable fitness tracker that didn’t have a screen. After all, us health editors are constantly bombarded with emails, texts, and ...

With its clasp mechanism, changing the band on a Whoop 4.0 is a little different from your typical smartwatch or fitness tracker. Especially if you’re new to wearing a Whoop, it can also be tricky ...