R04 Smart Ring: Heart rate monitoring
Ever wished your jewelry could do more than just look pretty? Meet our Smart Ring—a tiny tech marvel that's got your back (and your health stats). Packed with a Jeri chipset and Bluetooth 5.4, it stays connected without breaking a sweat. And thanks to the STK8321-W sensor chip, it's like having a mini health lab on your finger, tracking everything from heart rate to how stressed you are (because, let's face it, we all need to know).
Battery life? Oh, it's a beast. A 15mAh battery (or 18mAh if you've got bigger fingers) keeps it going for up to 7 days—or 15 if you're just letting it chill. And when it's time to power up, a quick 1.5-hour charge via magnetic charging gets you back in action. Plus, with a 5ATM waterproof rating, it laughs in the face of rain, pools, and your sweatiest workouts.
Download the QRing app, and suddenly, your ring's doing tricks: counting steps, tracking distance, calculating calories, and even reminding you about, well, lady stuff. Lose it? The app helps you find it. Want to snap a pic without touching your phone? Boom—remote photography. (Yeah, it's basically showing off at this point.)
What's in the box? Glad you asked:
- One seriously smart ring
- A charging cable (because magic isn't real yet)
- A user manual (for those who read them)
- And the original box, because it deserves a nice home
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 20mm, Circumference 62.8mm
- 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
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
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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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Smart Ring with Health Monitoring, Multiple Sports Modes
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Smart Ring Heart rate monitoring
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| Brand | ||||||
| Model | R04 | R9 | R5 SIZE 10 | R11 | R5 SIZE 11 | R11 |
| Color | ||||||
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| Price | $10.18 | $15.72 | $11.19 | $20.26 | $11.10 | $20.26 |
| Seller | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky | Sunsky |
| Update | May 8, 2025 | December 22, 2024 | December 7, 2024 | May 13, 2025 | December 22, 2024 | May 13, 2025 |
| Chipset | Jeri | Realtek | Realtek | |||
| Bluetooth | 5.4 | 5.1 | 5.1 | 5.2 | 5.1 | 5.2 |
| Sensor chip | STK8321-W | ST LIS2DOC | ST LIS2DOC | |||
| Battery Capacity | 15mAh (18mAh for size 9 and above) | 18mAh | 18mAh | 15mAh | 18mAh | 15mAh |
| Battery life | 5-7 days of use, 15 days of standby | 5-7 days of use, 15 days of standby | 5-7 days of use, 15 days of standby | |||
| Charging time | around 1.5 hours | About 1.5H | About 1.5H | |||
| Waterproof | 5ATM | IP68 | IP68 | IP68 | 5ATM | |
| Size | Dia 20mm, Circumference 62.8mm | Dia 19.8mm, Circumference 62.1mm | Dia 19.9mm; Circumference 62.1mm | Dia 22.3mm, Circumference 70mm | Dia 20.7mm; Circumference 64.6mm | Dia 21.6mm, Circumference 67.9mm |
| Compatible system | Android5.1 or above, iOS8.0 or above | Android5.1 or above, iOS8.0 or above | Android5.1 or above, iOS8.0 or above | |||
| APP | QRing | EcTri | EcTri | EcTri | 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 | 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 | 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 | |||
| CPU | Pixart 2860 | Pixart 2860 | Pixart 2860 | |||
| Heart Rate Sensor | 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 | |||
