
Original: $65.15
-70%$65.15
$19.55The Story
Your first smart ring, combining sleek design, advanced health tracking, and seamless connectivity for everyday wear.
Key Features
- Sleek & Comfortable Design → Lightweight titanium alloy ring with a thin profile for all-day comfort
- Powerful Chip → RF03 chipset with Bluetooth 5.0 ensures smooth performance and smart notifications
- Comprehensive Health Management → Monitor heart rate, blood oxygen, sleep, and daily activity effortlessly
- Waterproof → IP68 & 5ATM rating allows worry-free use during hand washing, rain, or swimming
- Long Battery Life → 15mAh battery with magnetic charging cable keeps your ring powered throughout the day
- App Support → QRing app compatible with Android 5.1+ and iOS 8.0+ for full control and tracking
Specifications
| Brand | COLMI |
| Model | R03 Smart Ring |
| Chipset | RF03 (BlueX Micro) |
| Bluetooth | 5.0 BLE |
| Sensors | STK8321, Heart Rate VC30F |
| Battery | 15mAh Lithium Polymer, Magnetic Charging |
| Waterproof | IP68 & 5ATM |
| Material | Titanium Alloy |
| App | QRing (Android 5.1+ / iOS 8.0+) |
| Colours | Black, Gold |
| Warranty | 12-Months |
Sizing Chart
| Colour | Inner Diameter | Width | Waterproof |
|---|---|---|---|
| Black | 17.9mm | 2.7mm | 5ATM |
| Gold | 17.9mm | 2.7mm | 5ATM |
| Black | 18.3mm | 2.7mm | 5ATM |
| Gold | 18.3mm | 2.7mm | 5ATM |
| Black | 19.1mm | 2.7mm | 5ATM |
| Gold | 19.1mm | 2.7mm | 5ATM |
| Black | 20mm | 2.7mm | 5ATM |
| Gold | 20mm | 2.7mm | 5ATM |
| Black | 20.8mm | 2.7mm | 5ATM |
| Gold | 20.8mm | 2.7mm | 5ATM |
| Black | 21.6mm | 2.7mm | 5ATM |
| Gold | 21.6mm | 2.7mm | 5ATM |
| Black | 22.4mm | 2.7mm | 5ATM |
| Gold | 22.4mm | 2.7mm | 5ATM |
Experience wearable technology in a sleek, lightweight design with the COLMI R03 Smart Ring — smart health tracking, style, and long-lasting performance at your fingertips.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Your first smart ring, combining sleek design, advanced health tracking, and seamless connectivity for everyday wear.
Key Features
- Sleek & Comfortable Design → Lightweight titanium alloy ring with a thin profile for all-day comfort
- Powerful Chip → RF03 chipset with Bluetooth 5.0 ensures smooth performance and smart notifications
- Comprehensive Health Management → Monitor heart rate, blood oxygen, sleep, and daily activity effortlessly
- Waterproof → IP68 & 5ATM rating allows worry-free use during hand washing, rain, or swimming
- Long Battery Life → 15mAh battery with magnetic charging cable keeps your ring powered throughout the day
- App Support → QRing app compatible with Android 5.1+ and iOS 8.0+ for full control and tracking
Specifications
| Brand | COLMI |
| Model | R03 Smart Ring |
| Chipset | RF03 (BlueX Micro) |
| Bluetooth | 5.0 BLE |
| Sensors | STK8321, Heart Rate VC30F |
| Battery | 15mAh Lithium Polymer, Magnetic Charging |
| Waterproof | IP68 & 5ATM |
| Material | Titanium Alloy |
| App | QRing (Android 5.1+ / iOS 8.0+) |
| Colours | Black, Gold |
| Warranty | 12-Months |
Sizing Chart
| Colour | Inner Diameter | Width | Waterproof |
|---|---|---|---|
| Black | 17.9mm | 2.7mm | 5ATM |
| Gold | 17.9mm | 2.7mm | 5ATM |
| Black | 18.3mm | 2.7mm | 5ATM |
| Gold | 18.3mm | 2.7mm | 5ATM |
| Black | 19.1mm | 2.7mm | 5ATM |
| Gold | 19.1mm | 2.7mm | 5ATM |
| Black | 20mm | 2.7mm | 5ATM |
| Gold | 20mm | 2.7mm | 5ATM |
| Black | 20.8mm | 2.7mm | 5ATM |
| Gold | 20.8mm | 2.7mm | 5ATM |
| Black | 21.6mm | 2.7mm | 5ATM |
| Gold | 21.6mm | 2.7mm | 5ATM |
| Black | 22.4mm | 2.7mm | 5ATM |
| Gold | 22.4mm | 2.7mm | 5ATM |
Experience wearable technology in a sleek, lightweight design with the COLMI R03 Smart Ring — smart health tracking, style, and long-lasting performance at your fingertips.














