Colmi R02 Smart Ring Size 12 21.3mm with Charging Case - Black
COLMI R02 Smart Ring size 12 (21.3 mm) is a lightweight wearable that tracks heart rate, SpO2, sleep, and activity across 21 sport modes. It connects via Bluetooth 5.0 to the QRing app for data syncing and analysis. Built from titanium alloy with a hypoallergenic inner layer, it offers all-day comfort and durability. With IP68 water resistance and 6–7 days of battery life, plus a magnetic charging case, it is designed for continuous daily health monitoring without interruption.
