Colmi R10 Smart Ring - Black - 20.8 mm - Size 11

The Colmi R10 20.8MM smart ring in Black combines sleek design with full-scale health and activity tracking. It measures heart rate, SpO', stress, body temperature, sleep quality, steps, distance, and calories. Lightweight and water-resistant (5ATM), it ensures comfort and durability. Data syncs automatically via the QRing app for detailed insights. The included charging case provides up to 13 full recharges, each lasting 3-5 days. Comes with USB-A to USB-C cable and user manual.