1. Introduction
The ATUOTIN SR08 Smart Ring is a versatile wearable device designed for health and fitness monitoring. It features an LED display, 5ATM waterproofing, and Bluetooth 5.1 connectivity, offering multi-sport modes, real-time heart rate, blood oxygen, and sleep monitoring. This manual provides essential information for setting up, operating, and maintaining your smart ring.
2. Product Features
- Versatile Smart Ring: Supports multiple sports modes and provides real-time heart rate monitoring. Tap to display readings and initiate new tests.
- Comprehensive Health Monitor: Offers detailed insights into well-being with sleep tracking and blood oxygen measurement. Tap to view sleep duration and blood oxygen levels.
- Innovative Health Fitness Rings: Seamlessly integrates with WeChat and Apple Health for step tracking and data synchronization. Supports multilingual app interface.
- Dynamic Sport Health Ring: Enables gesture controls for various apps, allowing hands-free browsing of videos, scrolling pages, and online shopping.
- Convenient Sleep Ring: Features a remote photo-taking function, triggering the camera with a simple gesture for selfies and photos.
- IP68 Waterproof Technology: Fully enclosed structure, suitable for swimming, washing hands, bathing, showering, diving, and snorkeling (supports waterproof depth of more than 50 meters).
- Durable Design: Constructed with a sturdy and durable metal frame, combining hard and soft innovative design for comfort and resilience.
- Long Battery Life: Designed for super long battery life to minimize charging anxiety.
3. Package Contents
- 1 x SR08 Smart Ring
- 1 x Charging Cable
- 1 x Instruction Manual
Note: The charging case is not included.
4. Specifications
| Attribute | Detail |
|---|---|
| Brand Name | ATUOTIN |
| Model | SR08 |
| Origin | Mainland China |
| Sizes (Inner Diameter) | 8 (18.2mm), 9 (19.0mm), 10 (19.9mm), 11 (20.7mm), 12 (21.5mm) |
| Thickness | 2.5mm |
| Weight | Approx. 3.4g |
| Waterproof Rating | 5ATM (supports diving/snorkeling > 50 meters) |
| Material | Stainless steel + glue filling process |
| Main Chip Model | German Dialog DA14585 (ultra-low power consumption) |
| Body Storage Capacity | 128kb ROM + 96 Kb RAM |
| Sensor | SC7A20 |
| Bluetooth Version | 5.1 |
| APP-side GPS Data Support | Yes |
| Heart Rate Sensor Model | Tianyi 3918 |
| Battery Type | Polymer pure cobalt battery |
| Working Temperature | 0-50℃ |
| Battery Capacity | 18mAh |
| Charging Time | 2 hours |
| Theoretical Standby Time | 16-20 days |
| Usage Time | 3-4 days |
| Compatibility | Android 9.0 and above; Apple iOS 10.0 and above |
| Compatible Software | Jring |
| OTA Upgrade Support | Yes (Fota upgrade) |
| APP Name | Jring |
| Packaging Size | 83*82*28.5mm |
| Gross Weight | 65g |
5. Setup Guide
5.1. Sizing Your Ring
To ensure accurate health monitoring, it is crucial to select the correct ring size. Follow these steps to measure your finger:
- Take a long piece of rope or a paper strip and wrap it around the finger you intend to wear the ring on.
- Ensure the rope or paper strip fits precisely, avoiding it being too loose or too tight, which can cause size deviation.
- Mark the intersection point on the rope or paper strip.
- Lay the marked rope or paper strip flat and measure its length in millimeters. It is recommended to measure multiple times and take the average value for accuracy.

Refer to the size chart below to find your corresponding ring size:

5.2. App Download and Pairing
To unlock the full potential of your SR08 Smart Ring, download the 'Jring' app on your smartphone.
- Search for 'Jring' in your device's app store (compatible with Android 9.0+ and iOS 10.0+).
- Install the app and open it.
- Ensure Bluetooth is enabled on your smartphone.
- Follow the on-screen instructions within the Jring app to pair your SR08 Smart Ring. The app will guide you through the connection process.

6. Operating Instructions
6.1. Basic Touch Interactions
The SR08 Smart Ring features intuitive touch controls on its display:
- Single Touch: Displays the current time.
- Double Touch: Shows your daily step count.
- Triple Touch: Displays your current heart rate.
- Four Touches: Displays your current blood oxygen level.
- Five Touches: Shows your sleep duration.
- Six Touches: Displays the current battery level.
6.2. Health Monitoring
The smart ring continuously monitors various health metrics:
- Heart Rate Monitoring: Equipped with high-precision optical sensors for real-time, 24-hour heart rate tracking. You can check your heart rate details at any time via the ring's display or the Jring app.
- Blood Oxygen Monitoring: Continuously measures your blood oxygen saturation. View your current SpO2 levels on the ring or in the app.
- Sleep Guardian: Provides comprehensive sleep monitoring, tracking your sleep stages from falling asleep to waking up. Detailed sleep data is available in the Jring app.
- Daily Exercise Monitoring: Tracks your daily steps, calories burned, and distance covered. This data is clearly visualized in the Jring app to help you achieve your fitness goals.

6.3. App Functionality
The Jring app provides a detailed overview and control for your smart ring:
- Data Visualization: View daily energy consumption, average daily steps, and weekly/monthly data trends.
- Remote Selfie: Use the ring as a remote trigger for your phone's camera.
- Device Settings: Perform factory resets, update device firmware (OTA upgrade), and conduct automatic heart rate tests.
- Short Video Control: Utilize gesture controls for navigating short video platforms like TikTok.
- Health App Integration: Syncs with WeChat and Apple Health for a unified health data experience.
6.4. Gesture Controls
The SR08 Smart Ring supports intuitive gesture controls for enhanced interaction:
- App Navigation: Effortlessly browse videos, scroll pages, and shop online without physically touching your phone screen.
- Remote Photography: A simple gesture can trigger your smartphone's camera, allowing you to take photos and selfies conveniently.
7. Maintenance
7.1. Cleaning
To keep your smart ring in optimal condition:
- Wipe the ring regularly with a soft, dry, lint-free cloth.
- Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and internal components.
7.2. Water Resistance
The SR08 Smart Ring is 5ATM waterproof, meaning it can withstand water pressure equivalent to a depth of 50 meters. This makes it suitable for:
- Washing hands
- Bathing and showering
- Swimming
- Shallow diving and snorkeling
Avoid exposing the ring to high-pressure water jets or hot water for extended periods, as this may compromise the seals over time.

7.3. Charging
Charge your SR08 Smart Ring using the provided charging cable:
- Connect the charging cable to a compatible USB power source.
- Place the smart ring onto the charging contacts of the cable.
- A full charge typically takes approximately 2 hours.
- The ring's display can show the battery level with six touches.
8. Troubleshooting
- Ring not turning on or displaying: Ensure the ring is fully charged. Connect it to the charging cable for at least 15 minutes.
- App not connecting to the ring: Check that Bluetooth is enabled on your smartphone and the ring is within range. Ensure the Jring app is updated to the latest version. Try restarting both your phone and the ring.
- Inaccurate health readings: Verify that the ring is worn snugly on your finger. Loose fitting can affect sensor accuracy. Ensure the sensors on the inner side of the ring are clean.
- Short battery life: Reduce the frequency of manual checks if you are constantly tapping the ring. Ensure the ring is fully charged before use.
9. User Tips
- For the most accurate health data, wear the ring on a finger that allows for a snug yet comfortable fit.
- Regularly sync your smart ring with the Jring app to review your health trends and progress over time.
- Take advantage of the gesture controls for hands-free operation, especially when engaging in activities like cooking or exercising.
- Utilize the remote photo-taking feature for group photos or selfies, eliminating the need for a timer or asking someone else to take the picture.
10. Warranty and Support
For any product-related inquiries, technical support, or warranty information, please contact the seller directly or refer to the official ATUOTIN website for assistance.