All three rings operate on a similar basis. They track movement with 3-D accelerometers, measure blood oxygen levels and ...

Smart rings are better at some things.

Discover how smart rings 2026 track sleep, HRV, and fitness metrics. Compare Oura Ring 4, accuracy rates, battery life, and ...

The first fitness tracker made by Renpho is durable and long-lasting, but its performance hiccups and utilitarian design massively undermine its value.

Smartwatches have become an extension of our smartphones, buzzing constantly with notifications, reminders, and alerts. While they started as health companions, many now feel more like distractions ...

In last month’s smart ring overview coverage, I mentioned two things that are particularly relevant to today’s post: Next up is sizing, discussed upfront in last month’s write-up. Ultrahuman is the ...

Sanuj is a tech enthusiast with a passion for exploring smartphones, tablets, and smart wearables. He started his tech journey with a Lumia smartphone, diving into Windows Phone. Later, he switched to ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...

Some people are paying hundreds of dollars for a tiny piece of tech that still charges a monthly fee. Others, however, have outsmarted the system by buying a $39.99 dupe right next to the impulse-buy ...

The Colmi R02 is one of the cheapest smart rings on the market. It costs about $20, and is remarkably easy to hack. [Floyd ...