The Luna ring doesn't have any standout features, but it's a solid alternative to Oura—provided you can find one.

Smart rings are having something of a moment, going back to around the beginning of 2024. It seems like we blinked and found a bunch of smart rings available, many of which did largely the same things ...

Our comprehensive review of the Noise Luna Ring Gen 2, including analysis of the battery life, tracking accuracy, design, and more.

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We may receive a commission on purchases made from links. Smart rings have grown in popularity as a way for users to get high-end fitness tracking in a subtle and sleek device. Oura, in particular, ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Editors' Note: The Oura Ring 4 is not just a great smart ...

Looks and feels more like jewelry than ever. New Smart Sensing platform makes the ring more accurate and easier to wear. Updated app with interesting new features. Better battery life. Both Android ...

Editor's note: Due to a patent dispute, the version of the Ultrahuman Ring Air we reviewed is no longer manufactured for sale in the US. That said, some stores may still offer existing stock.