Colmi R12 Smart Ring Size 12 (R12-K-12)

Manufacturer: Colmi
Model: R12
Size: 12
Inner diameter: 21.6 mm
Color: Black
Display: Battery charge level, time, steps, heart rate
Material: Stainless steel + epoxy resin
Weight: 4.7 g
Compatibility: Android 4.4 and above; iOS 8.0 and above; Harmony OS
App: QRing
Water resistance: 1ATM
Updates: OTA
App languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Simplified Chinese, Traditional Chinese, Romanian, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malaysian

Hardware
Chipset: REALTEK RTL8762E
Memory: ROM 512KB
Heart rate sensor: Vcare VC30F
G-sensor: ST LI2DOC
Bluetooth: 5.0
Battery type: Lithium-polymer
Battery capacity: 18 mAh
Charging_ Charging base + USB-C cable
Charging cycles: Over 300
Charging time: Approx. 1 hour
Operating time: 3–5 days

Features
App functions: Activity, calories, steps, distance in kilometers, sleep, heart rate, sports mode, workout record, HRV (heart rate variability), blood oxygen level (SpO₂), stress level, daily tasbih (prayer counting), gesture control (music, short video, e-book), game features (Jump, Fruit Rotation, Pixel Bird, Robot, Bounce, Battle Royale, Circle to Fight Monsters), find ring, health monitoring (24-hour heart rate tracking, SpO₂ detection, daytime stress tracking, scheduled HRV monitoring), take photo, theme style, unit format, low battery alert, software updates, system settings, display settings (on/off, wear time, screen time, brightness adjustment), background activity protection guide, frequently asked questions (FAQ)