COLMI R02 smart ring, size 9 (18.9 mm), in black. The COLMI R02 is a lightweight and discreet smart ring that combines health tracking with sports features.

• Health tracking: Measures heart rate and blood oxygen levels (SpO2) and analyzes sleep.
• Activities: Tracks daily activity and workouts across 21 sports modes.
• Connectivity: Supports Bluetooth 5.0 and works with the QRing app.
• Water resistance: IP68 rating.
• Battery life: 6 to 7 days on a single charge.
• Materials: Made of titanium alloy and hypoallergenic resin for comfort.

The ring was designed for maximum comfort during wear, weighing just 4.7 g and measuring 2.7 mm thick. It is ideal for day and night use, enabling continuous data collection.

Included:

• COLMI R02 ring
• Charging case
• Magnetic cable
• User manual

Manufacturer: COLMI
Model: R02
Size: 9
Inner diameter: 18.9 mm
Circumference: 59.5 mm
Outer material: titanium alloy
Inner material: hypoallergenic resin
Health and tracking functions: Heart rate measurement, blood oxygen saturation (SpO2) measurement, sleep tracking, activity tracking.