R04 Smart Ring: Heart rate monitoring
Ever wished your jewelry could do more than just look pretty? Meet our Smart Ring—it's like having a personal health coach wrapped around your finger. Packed with a Jeri chipset and Bluetooth 5.4, this little gadget stays connected without breaking a sweat. And thanks to the STK8321-W sensor chip, it's got your back (or rather, your heart) with spot-on health stats like heart rate variability and stress levels. Who knew something so small could be so smart?
Worried about battery life? Don't be. This ring keeps going for 5-7 days on a single charge (and up to 15 if you're just showing it off). When it does need a boost, a quick 1.5-hour charge is all it takes. Plus, it's 5ATM waterproof, so rain or shine, pool or ocean, it's ready for whatever you throw at it.
- Compatibility: Plays nice with Android 5.1 or above and iOS 8.0 or above—no favoritism here.
- Download the QRing app (yes, it speaks multiple languages) to get the most out of your ring.
- What's in the box? Just the essentials: the smart ring itself, a charging cable, a user manual (for those who read them), and the original retail box (because first impressions matter).
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 9: Dia 19.1mm, Circumference 60mm
- 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
|
Hivisuals R18 24-hour heart rate monitoring
|
M1 1069300SZBT
|
Anarow R10M All-Day Health Monitoring
|
Hivisuals R18 24-hour heart rate monitoring
|
Uni-Green L-Y-SRBLACK-013 Ultra-Thin and Comfortable to Wear
|
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| Brand | Hivisuals | M1 | Anarow | Hivisuals | Uni-Green | |
| Model | R04 | R18 | 1069300SZBT | R10M | R18 | L-Y-SRBLACK-013 |
| Color | ||||||
| Rating |
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| Price | $10.18 | $34.99 | $55.97 | $139.99 | $34.99 | $61.10 |
| Seller | Sunsky | Amazon | Geekmaxi | Amazon | Amazon | Amazon |
| Update | May 8, 2025 | May 13, 2025 | January 29, 2024 | May 12, 2025 | May 12, 2025 | May 12, 2025 |
| Batteries | 1 AA batteries required. | 1 Lithium Polymer batteries required. | 1 AA batteries required | |||
