Check the listing for details. Ours RIng Gen 4 - Stealth - Size 12. Color: Stealth Grey, Condition: Used. Listed at 199.00 USD. The Ours Ring Gen 4 in Stealth Grey is a high-tech activity tracker suitable for both indoor and outdoor use. With a display resolution of 240 x 240, it provides accurate measurements for heart rate and sleep tracking. Powered by batteries, this metal ring offers up to 7 days of battery life and is compatible with Android operating systems. The GPS sensor is perfect for tracking running and jogging activities, and it comes with a 1-year manufacturer warranty for added peace of mind. Whether you're a fitness enthusiast or looking to improve your sleep quality, the Ours Ring Gen 4 is a sleek and reliable tool for unisex adults. — Small scratches as this is a used ring. Works great. Comes with the ring, the charger and the USB cable that came with the ring