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 ...

I bought two Fitbits. A Fitbit Air and a Charge 6. I think it's a bit of a luxury, even for me. But when I thought, "I can only measure my current activity right now," I decided it was worth buying ...

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 ...

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.

The best fitness trackers don’t always need to do the full-blown job of mapping a mountain route or pacing a marathon. Sometimes, what you really need is a simple device that keeps an eye on your ...

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 ...

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 ...

There still exists a strong divide between smartwatches and traditional mechanical or digital wrist watches. Tech companies such as Apple, Samsung, and Xiaomi have developed feature-filled, capable ...