R04 Smart Ring: Heart rate monitoring
Meet the R04 Smart Ring—your wrist's new best friend that doesn't skimp on looks or brains. Packed with a Jeri chipset and Bluetooth 5.4, it's like having a superhighway for your data, minus the traffic. And thanks to the STK8321-W sensor chip, it's got your back (or rather, your finger) with spot-on health stats, from how stressed you are to how your heart's doing. Battery life? A solid week of use (or two if you're just showing off), and it juices up in a blink—1.5 hours with its magnetic charger. Oh, and that 15mAh battery? Bumps up to 18mAh if you've got bigger fingers (size 9 and up, we see you).
Rain or shine, pool or shower, this ring's got you covered with its 5ATM waterproofing. And with the QRing app speaking your language (literally, it supports a bunch), it's like having a personal translator for your health data. Whether you're counting steps, spying on your sleep, or snapping pics from afar (because why not?), the R04 is here to make life a tad easier.
- Plays nice with Android 5.1+ and iOS 8.0+—no favoritism here.
- Comes with the ring, a charger (because it's not magic), a manual (for those who read them), and a box (for that unboxing thrill).
General specs
- Model: R04
- Seller: Sunsky
- Chipset: Jeri
- Bluetooth: 5.4
- Sensor chip: STK8321-W
- Battery Capacity: 15mAh (18mAh for size 9 and above)
- Battery life: 5-7 days of use, 15 days of standby
- Charging time: around 1.5 hours
- Waterproof: 5ATM
- Size: Dia 18.3mm, Circumference 57.5mm
- Charging method: Magnetic charging
- Compatible system: Android5.1 or above, iOS8.0 or above
- APP: QRing
If you are interested in more details, you can find full information on the seller's page.
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Ring Heart rate monitoring
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Smart Ring with Health Monitoring and Gesture Control
|
Smart Fitness Ring Activity tracking
|
YULUCKGO SRC10 Health Heart Rate Monitoring
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Smart Ring Heart rate monitoring
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Shenzhen Yawell Intelligent Technology Co.,Ltd 315c59d3-cbd2-4039-8405-7f4703420088
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| Brand | Weylmd | YULUCKGO | Shenzhen Yawell Intelligent Technology Co.,Ltd | |||
| Model | R04 | R9 | SRC10 | R11 | 315c59d3-cbd2-4039-8405-7f4703420088 | |
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| Price | $10.18 | $15.72 | $39.99 | $39.99 | $20.26 | $39.99 |
| Seller | Sunsky | Sunsky | Amazon | Amazon | Sunsky | Amazon |
| Update | May 8, 2025 | December 22, 2024 | May 12, 2025 | May 11, 2025 | May 13, 2025 | May 13, 2025 |
| Bluetooth | 5.4 | 5.1 | 5.2 | |||
| Battery Capacity | 15mAh (18mAh for size 9 and above) | 18mAh | 15mAh | |||
| Size | Dia 18.3mm, Circumference 57.5mm | Dia 19.8mm, Circumference 62.1mm | Dia 22.3mm, Circumference 70mm | |||
