Colmi R12 Size 11 Smart ring

The COLMI R12 Smart Ring (20.8 mm, Size 11) combines elegant design with advanced health-tracking technology. With a discreet look and a lightweight body, it monitors steps, heart rate, calories, and more, while supporting notifications and gesture control. Made of stainless steel with epoxy resin coating, it is durable and stylish. Wireless charging and a long-lasting battery make it practical for everyday use. Water resistance (IP68 / 1ATM) ensures worry-free wear in rain or while washing hands.

Technical Specifications:

• Inner Diameter: 20.8 mm (Size 11)

• Material: Stainless steel + Epoxy resin

• Chipset: Realtek RTL8762E

• Connectivity: Bluetooth Low Energy 5.0 / 5.2

• Sensors: Heart rate sensor, accelerometer

• Battery: Lithium-polymer, ~18 mAh

• Charging: Wireless charging base + USB-C cable

• Compatibility: Android 5.1+ / iOS 8.0+

• Water Resistance: IP68 / 1ATM

• Display Data: Time, steps, heart rate, battery level

• Weight: ~4.7 g

• Operating Time: ~3-5 days