Oura may be the smart ring brand to beat in 2025, but there's no shortage of new products on the horizon that could very well give the Oura Ring 4 a serious run for the money. One of those is the Luna Ring 2 from Noise, which I just checked out at CES 2025.

A short hands-on demo with the second-generation smart ring has me seriously intrigued with its billing. With promising wellness tech and insights on par with the best smart rings out there, including the latest Oura Ring 4 as well as the Samsung Galaxy Ring, here are three reasons why the new Luna Ring 2 could spell trouble for the competition.

With an estimated starting price of $300, $50 less than the latest Oura Ring, and zero subscription costs (the Oura app is $5.99 a month), the Luna Ring 2 is easier on the wallet both right out of the gate and in the long run compared to its main competitor.

The Samsung Galaxy Ring is also subscription-free but starts a full $100 more than the Luna Ring 2.

On its own, Noise, the brand behind the Luna Ring, estimates it should last between five and six days on a single charge with normal use. That’s a little less than the Oura Ring 4 and Samsung Galaxy Ring. However, with the optional clamshell-style charging case fully juiced up, users can get closer to 30 days of longevity if they occasionally pop it inside of said charger.