1. Introducció
The COLMI R03 Smart Ring with Charging Case is a wearable technology device designed for health monitoring. It tracks heart rate, blood oxygen, and stress levels. The device features a titanium steel shell and advanced low-temperature potting technology, providing 5ATM and IP68 water resistance. The R03 Smart Ring is lightweight, durable, and resistant to wear. It supports 20 different exercise modes, monitoring heart rate data in real-time during physical activity. The ring is intended to provide a blend of innovation, style, and health consciousness.
2. Informació de seguretat
Before using and operating the device, please read and follow the following precautions to ensure optimal device performance and to avoid dangerous or illegal situations.
- In daily use, choose a suitable size for your fingers, avoiding wearing it too tightly. Keep the contact area of the ring dry, and wipe it in time if it comes into contact with water. If symptoms such as redness and swelling appear in the contact area, stop using immediately and consult a doctor.
- Seguretat de càrrega: Keep the charging cable and device in a dry environment when charging. Do not touch the charging cable with wet hands and avoid immersing it in liquids such as water.
- Manipulació de la bateria: No desmunteu ni modifiqueu la bateria, no introduïu objectes estranys ni la submergiu en aigua o altres líquids per evitar que es produeixin fuites, sobreescalfament, incendi o explosió de la bateria.
- Danys físics: Do not drop, squeeze, or puncture the battery. Avoid subjecting the battery to large external pressure, which can cause internal short circuits and overheating issues.
3. Contingut del paquet
The COLMI R03 Smart Ring package includes:
- Anell intel·ligent COLMI R03
- Cable de càrrega
- Guia ràpida (aquest document)
4. Producte acabatview
The COLMI R03 Smart Ring is equipped with internal sensors for health monitoring. The sensor array includes a green light for heart rate detection and a red light for blood oxygen detection. A charging port is also integrated into the design.

Image: COLMI R03 Smart Ring and its charging case.

Imatge: Primer pla view of the COLMI R03 Smart Ring showing the internal sensors (green and red lights) and charging port.
5. Configuració
5.1. Encès
To power on the device, connect the charging cable to the ring. The heart rate light (green light) will illuminate to indicate successful startup.
5.2. Connexió a l'aplicació
The COLMI R03 Smart Ring connects to your smartphone via the 'QRing' app. You can download the 'QRing' app from the App Store (for iOS devices) or Google Play (for Android devices). Once installed, open the app and ensure Bluetooth is enabled on your phone. The app should automatically connect to the ring when launched. The ring independently performs body monitoring and records blood oxygen and heart rate status. The data will be updated within the app once connected.
5.3. Mètode de vestir
Wear the ring on a suitable finger, choosing a comfortable size. It is suggested to wear it on the index finger, middle finger, or ring finger for better data monitoring. Ensure the HR (Heart Rate) and SPO2 (Blood Oxygen) sensors are positioned on the inside of your finger for more accurate measurements.
5.4. Guia de talles
The COLMI R03 Smart Ring is available in multiple sizes. Please measure your finger circumference to ensure a comfortable fit before selecting your size. The table below provides inner diameter and perimeter measurements for each ring size.

Image: Size chart with inner diameter and perimeter for ring sizes #7 to #13, and a visual guide on how to measure your finger size.
How to Measure Your Ring Size:
- Pas 1: Take a long non-elastic rope or paper, and wrap it around your finger.
- Pas 2: Make the rope or paper fit closely to your fingers to avoid being too loose or too tight, which may cause size deviation.
- Pas 3: Mark the junction part on the rope or paper.
- Pas 4: Lay the rope or paper flat, and measure the length. It is recommended to measure multiple times for more accurate data.
6. Instruccions de funcionament
6.1. Monitorització de la salut
The COLMI R03 Smart Ring provides comprehensive health monitoring features:
- Monitorització de la freqüència cardíaca: 24/7 heart rate tracking. View your heart rate details anytime in the QRing app.
- Monitorització d'oxigen en sang (SpO2): Check your blood oxygen saturation anytime.
- Monitorització del son: Tracks sleep quality (REM, light sleep, deep sleep) and generates reports to help develop good sleep habits.
- Seguiment de l'activitat: Records daily steps, distance, and calorie consumption. Supports multiple exercise modes.
- Monitorització de l'estrès: Proporciona informació sobre els teus nivells d'estrès.

Imatge: Més deview of health data including 7*24H heart rate, blood oxygen, sleep, activity, and stress monitoring.

Image: Screenshots of the QRing app displaying real-time heart rate, activity, and blood oxygen data. Note: This app is not a medical device. Data is for reference only and should not be used for clinical diagnosis, medical research, diagnostic, or treatment purposes.

Image: Screenshots of the QRing app showing detailed sleep state analysis, including total duration, sleep efficiency, and light/deep sleep periods.
6.2. App Data Visualization
The QRing app provides daily, weekly, and monthly data visualization for energy consumption, average daily step count, and average daily standing count. It also allows for real-time heart rate measurement and blood oxygen detection.
Vídeo: Aquest vídeo ofereix una visió generalview of the COLMI R03 Smart Ring, showcasing its design, health monitoring capabilities (heart rate, blood oxygen, sleep, activity), 5ATM waterproofing, and camera control feature. It also demonstrates the ring's interaction with the companion app and its charging process.
6.3. Control de càmera
The COLMI R03 Smart Ring supports perceived control, enabling convenient gesture-based camera control for your smartphone.
7. Càrrega
The COLMI R03 Smart Ring is equipped with a charging case for convenient charging. The ring offers a single-time endurance of approximately 3-5 days. The charging case, when fully charged, can provide about 13 full charges for the ring.
During charging, the red light on the ring will flash. Once the ring is fully charged, the green light will flash.

Image: The COLMI R03 Smart Ring being charged in its charging case, illustrating the charging process and battery life.
8. Especificacions
| Característica | Especificació |
|---|---|
| Nom de marca | COLMI |
| Número de model | COLMI R03 |
| Grau impermeable | 5ATM |
| Pantalla de visualització | No |
| Suport NFC | No |
| Activitat registrada | Activity Tracker, Steps Tracker, Distance Tracker, Calorie Tracker |
| Mètriques mesurades | Heart Rate Monitor, Sleep Monitor, Blood Oxygen Monitor, Stress Monitor |
| Pes de l'article | 4.4 g |
| Material de la caixa | Acer |
| Certificació | CE, FCC |
| Origen | Xina continental |
| Battery Capacity (Ring) | 15mAh (#7, #8, #9), 18mAh (#10, #11, #12, #13) |
| Xip de control principal | BlueX Micro RF03 |
| Bluetooth | 5.0 |
| Mètode de càrrega | Càrrega magnètica |
| Port de càrrega | Tipus C |
| Caixa de càrrega Capacitat de la bateria | 200 mAh |
| Mida de la caixa de càrrega | 43 mm x 43 mm x 25 mm |
9. Manteniment
- Keep the contact area of the ring dry and wipe it promptly if it comes into contact with water.
- If skin irritation (redness, swelling) occurs in the contact area, discontinue use immediately and consult a doctor.
- Do not immerse the charging cable or the device in liquids during charging.
- Clean the ring regularly with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
10. Solució De Problemes
- Dades inexactes: Ensure the ring is worn correctly with the HR and SpO2 sensors positioned on the inside of your finger. Verify that the ring fits comfortably but securely.
- Problemes de connexió: Check that Bluetooth is enabled on your smartphone and that the QRing app is open. If the issue persists, try restarting both the ring (by reconnecting to the charger) and your phone.
- Problemes de càrrega: Ensure the charging cable is securely connected to both the ring and a power source. Verify that the charging case has sufficient battery.
- L'aplicació no s'actualitza: Make sure the QRing app has the necessary permissions on your phone and is running in the background.
For persistent issues, refer to the complete user manual (PDF) or contact customer support.
11. Garantia i Suport
For detailed warranty information, product support, and additional instructions, please refer to the complete user manual available as a PDF document. The COLMI R03 Smart Ring is backed by a free returns policy within 90 days. Additionally, guarantees for fast delivery are provided, which may include a $1.00 coupon for late delivery, and refunds for lost or damaged packages.
You can access the full user manual (PDF) for more comprehensive details and support.





