R08 SIZE 9 Smart Ring: Heart rate tracking
Meet the R08 SIZE 9 Smart Ring—your new health and fitness sidekick. Packed with a Realtek chipset and Bluetooth 5.2, it connects smoother than a fresh jar of peanut butter. And thanks to the ST LIS2DOCTR sensor chip, it’s like having a mini doctor on your finger, tracking everything from your heart rate to how well you’re sleeping (or not).
Whether you’re running, lifting, or just trying to remember where you left your keys, this ring’s got multiple sports modes to keep up. Plus, its 15mAh battery laughs in the face of daily charging, lasting 5-7 days on a single charge (and up to 15 if you’re just showing it off). Charging? A breeze with the magnetic method—no fumbling required.
Love water? This ring’s 5ATM waterproof rating means it’s ready to dive in with you, whether you’re swimming or just forgetting to take it off in the shower. Compatible with Android 5.1+ and iOS 8.0+, and with the QRing app speaking multiple languages, it’s practically a polyglot.
📦 What’s in the box: One smart ring (because wearing two would be overkill), a charging cable, a user manual (for those who read them), and the original retail box (for when you need to impress someone).
General specs
- Model: R08 SIZE 9
- Seller: Sunsky
- Chipset: Realtek
- Bluetooth: 5.2
- Sensor chip: ST LIS2DOCTR
- Battery Capacity: 15mAh
- Battery life: 5-7 days of use, 15 days of standby
- Charging time: About 1.5H
- Waterproof: 5ATM
- Size: Dia 19.2mm, Circumference 60mm
- Charging method: Magnetic charging
- Compatible system: Android5.1 or above, iOS8.0 or above
- APP: QRing
- APP support language: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Türkiye, 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, Malay
If you are interested in more details, you can find full information on the seller's page.
Comparison with similar products
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![]() Smart Ring with Health Monitoring and Gesture Control
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![]() Smart Ring with Health Monitoring, Multiple Sports Modes
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![]() Smart Ring Heart rate monitoring
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Brand | ||||||
Model | R08 SIZE 9 | R5 SIZE 10 | R5 SIZE 8 | R9 | R5 SIZE 11 | R11 |
Color | ||||||
Rating |
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Price | $19.57 | $11.19 | $11.19 | $15.72 | $11.10 | $20.26 |
Seller | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky |
Update | February 19, 2025 | December 7, 2024 | December 7, 2024 | December 22, 2024 | December 22, 2024 | May 13, 2025 |
Bluetooth | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 |
Battery Capacity | 15mAh | 18mAh | 18mAh | 18mAh | 18mAh | 15mAh |
Charging time | About 1.5H | 0.5H | About 1.5H | |||
Waterproof | 5ATM | IP68 | IP68 | IP68 | IP68 | 5ATM |
Size | Dia 19.2mm, Circumference 60mm | Dia 19.9mm; Circumference 62.1mm | Dia 18.2mm; Circumference 56.9mm | Dia 19.8mm, Circumference 62.1mm | Dia 20.7mm; Circumference 64.6mm | Dia 21.6mm, Circumference 67.9mm |
Charging method | Magnetic charging | Magnetic charging | Wireless charging | |||
Compatible system | Android5.1 or above, iOS8.0 or above | Android6.0 or above, iOS11.0 or above | Android5.1 or above, iOS8.0 or above | |||
APP | QRing | EcTri | EcTri | EcTri | EcTri | QRing |
CPU | Pixart 2860 | Pixart 2860 | Pixart 2860 | Pixart 2860 | ||
Heart Rate Sensor | HX3605 | HX3605 | HX3605 | HX3605 | ||
Working Time | 5-7 days | 5-7 days | 5-7 days | |||
Charging Time | 0.5H | 0.5H | 0.5H | |||
Charging Method | Magnetic charging | Magnetic charging | Magnetic charging | |||
Compatible System | Android6.0 or above, iOS11.0 or above | Android6.0 or above, iOS11.0 or above | Android6.0 or above, iOS11.0 or above |