1. Introduction
Welcome to the R11 Smart Ring user manual. This guide provides essential information on how to set up, operate, and maintain your R11 Smart Ring. The R11 is an ultra-thin, 5ATM waterproof smart ring designed to be your personal health manager, offering comprehensive tracking of your daily activities and vital health metrics.

2. Product Overview
The R11 Smart Ring is a sophisticated wearable device that combines style with advanced health monitoring capabilities. It features a sleek design, a touch-sensitive display, and robust 5ATM waterproofing, making it suitable for various activities. The ring connects to your smartphone via Bluetooth, allowing you to view and manage your health data through the dedicated QRing app.
3. Features
- Comprehensive Activity Tracking: Tracks daily activities including steps, distance, and calories burned.
- Advanced Health Monitoring: Measures heart rate, blood oxygen saturation (SpO2), and sleep patterns (deep, light, REM sleep). It also monitors stress levels and heart rate variability (HRV).
- Intuitive Touch Functionality: Easily switch between display functions with a single touch on the ring's screen.
- Enhanced Display Features: View time, steps, heart rate, battery level, and other metrics directly on the ring's display.
- Innovative Additional Features: Includes remote photo taking, a 'find-your-ring' function, gesture control, gaming capabilities, and female cycle tracking. The QRing app supports multiple languages for a personalized user experience.

4. Specifications
| Feature | Detail |
|---|---|
| Model Number | R11 |
| Origin | Mainland China |
| Thickness | 2.5mm |
| Weight | 3.3g (No. 10 ring) |
| Chipset | Realtek RTL8762 ESF |
| App | QRing |
| Compatible System | Android 5.1+ / iOS 8.0+ |
| FLASH Memory | RAM 104KB, FLASH 512KB |
| Bluetooth | BT 5.2 low-power Bluetooth-Compatible chip |
| Accelerometer | ST LIS2DOC |
| Heart Rate Sensor | Vcare VC30F-S |
| Battery Type | Polymer lithium ion |
| Battery Capacity | 15mAh (18mAh for No. 11 and above) |
| Charging Method | Wireless charging |
| Waterproof Level | 5ATM |
| Ring Charging Time | Approximately 1.5 hours |
| Life Time | 5-7 days of use, 15 days of standby |
| Appearance Material | Stainless steel |
| Wireless Charging Stand Size | 47*16mm |
| Charging Interface | Type-C |
| Charging Stand Material | Plastic cover + zinc alloy bottom shell |
Ring Size Chart

5. Package Contents
Upon opening your R11 Smart Ring package, you should find the following items:
- 1 x R11 Smart Ring
- 1 x Wireless Charging Stand
- 1 x Instruction Manual
6. Setup
6.1 Measuring Your Ring Size
Before using your R11 Smart Ring, ensure you have selected the correct size for optimal comfort and accurate sensor readings. Refer to the 'Ring Size Chart' in the Specifications section for detailed measurement instructions.
6.2 Initial Charging
Before first use, fully charge your R11 Smart Ring. Place the ring onto the wireless charging stand. Connect the charging stand to a power source using a Type-C cable (not included). The ring's display will show the charging status. A full charge takes approximately 1.5 hours.

6.3 App Installation and Pairing
- Download the 'QRing' app from your smartphone's app store (compatible with Android 5.1+ and iOS 8.0+).
- Open the QRing app and follow the on-screen instructions to create an account or log in.
- Ensure your R11 Smart Ring is charged and within Bluetooth range of your smartphone.
- In the app, search for and select your R11 Smart Ring to pair. Follow any prompts to complete the pairing process.
7. Operation
7.1 Basic Display Functions
The R11 Smart Ring features a touch-sensitive display. A single touch allows you to cycle through various information displayed directly on the ring, such as:
- Current Time
- Step Count
- Heart Rate
- Battery Level

7.2 Health Monitoring
The R11 Smart Ring continuously monitors your health data. This data is synchronized with the QRing app on your smartphone for detailed analysis.
- Heart Rate: Provides real-time and historical heart rate data.
- Blood Oxygen (SpO2): Monitors your blood oxygen saturation levels.
- Sleep Tracking: Analyzes your sleep stages (deep, light, REM) and provides a sleep score.
- Activity Tracking: Records steps, distance, and calories burned throughout the day.
- Stress Levels & HRV: Offers insights into your stress and heart rate variability.

7.3 Advanced App Features
Explore additional functionalities within the QRing app:
- Remote Photo Taking: Use your ring as a remote shutter for your phone's camera.
- Find Your Ring: Locate your ring if it's misplaced within Bluetooth range.
- Gesture Control: Control certain phone functions with specific hand gestures while wearing the ring.
- Gaming: Engage with compatible games using the ring's sensors.
- Female Cycle Tracking: Monitor and predict menstrual cycles.

8. Maintenance
- Cleaning: Wipe the ring and charging stand with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Water Resistance: The R11 Smart Ring is 5ATM waterproof, meaning it can withstand splashes, rain, and shallow-water activities like swimming. However, it is not recommended for diving or high-pressure water activities. Ensure the ring is dry before charging.
- Storage: Store the ring in a cool, dry place when not in use. Avoid extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the ring frequently. Charge it regularly, especially if it will be stored for an extended period.
9. Troubleshooting
- Ring not turning on: Ensure the ring is fully charged. Place it on the charging stand for at least 30 minutes.
- Cannot pair with phone: Make sure Bluetooth is enabled on your phone and the ring is charged. Restart both the ring (if possible) and your phone, then try pairing again through the QRing app.
- Inaccurate readings: Ensure the ring is worn snugly on your finger. Clean the sensors regularly. Check the QRing app for any calibration options or firmware updates.
- App not syncing data: Ensure your phone has an active internet connection. Close and reopen the QRing app. Check for app updates in your phone's app store.
- Short battery life: Check if any features are constantly running in the background. Reduce screen brightness if adjustable. Ensure the ring is fully charged each time.
10. User Tips
- For the most accurate heart rate and blood oxygen readings, wear the ring on your index or middle finger, ensuring it's snug but comfortable.
- Regularly check the QRing app for firmware updates to ensure you have the latest features and performance improvements.
- Explore all the features within the QRing app, such as gesture control and remote photo taking, to maximize your ring's utility.
- If you experience any discomfort or skin irritation, discontinue use and consult a healthcare professional.
11. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.




