Add Yahoo as a preferred source to see more of our stories on Google. But how did the WHOOP 4.0 stack up when Cosmo put it to the test? From its ease of use to battery life and functionality, we set ...

If you search for fitness tech, for example, one of our favorite fitness trackers, or hint at running or weightlifting while you're online, fitness ads will follow you around platforms like Facebook ...

Whoop's screenless fitness tracker isn't exactly a fitness wearable—it's a collection of subscriptions, with three tiers, each of which comes with a device, either 5.0 or MG. I noticed recently that ...

After careful hands-on testing, we feature our favorite gear and gadgets as Mashable Selects products in our dedicated shopping guides. When you start working out, it often feels like the hardest part ...

The Whoop 4.0 isn't the tracker you want if your needs are going to be basic. This is a deep tracking device that does a lot to tell you about how active you are, so if that's you, then you may like ...

While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...

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. November 11, 2025 Add ...