The Fitbit Air is Google’s new entry-level fitness tracker, and when Google announced it last month, I was immediately intrigued. I had never owned a fitness tracker or a smartwatch before, but the ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation—and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen may be used ...

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. Add as a preferred ...

I compared Fitbit Air and Whoop MG sleep tracking over seven nights to see how closely the two agreed.

Even though Prime Day is over, a few deals are still going. Notably, these fitness wearables are on sale—Garmin, Fitbit, ...

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

With just a couple of hours to go, we’re still checking price histories and finding genuine discounts on products we’ve tried and tested Simon is Telegraph Recommended's reviews editor, leading our ...

Fitbit's many achievements in its field has, to some extent, turned the brand name into something of a household term for wrist-worn fitness trackers. However, the concept of the fitness tracker ...

The Samsung Galaxy Watch 6 offers a design which is nearly identical to the previous model. You do get a bigger display on the 44mm model and since the case size has not increased a thinner bezel as ...