The Oura Ring 4 is the best smart ring money can buy, according to PCMag, and it now comes in four new colors, plus a more durable ceramic design. The Oura Ring 4 Ceramic comes in new Cloud, Midnight, Petal, and Tide colors—an off-white, metallic black, blush pink, and pastel blue-green, respectively. It's also thicker than the original wearable at 3.51mm versus the 2.88mm of the standard Ring 4. The brand is also introducing a new feature to its app for those who own more than one Oura ring. At $499, the Oura Ring 4 Ceramic is more expensive than the standard $349 Ring 4, but it aligns with the price difference between the premium gold and rose gold finishes of previous Oura smart rings.