Sleep Wearable Form Factor
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JIANVNUI 8 Black, Size 8 Health-Fitness Tracker Smart Ring
Available offers (2)
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Current
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Black, Size 8
Retailer
€58.83
Available to order
Price history by offer
Volatility: HighFeatures
- 24/7 heart rate and SpO2 monitoring
- 128 sports modes with auto tracking
- Advanced sleep stage analysis
- IP68 waterproof rating
- Gesture control for hands-free photos
- Customizable auto blood pressure monitoring
- Menstrual cycle reminders
- No subscription fees
- Sleek and lightweight unisex design
General specs
- Brand: JIANVNUI
- Model: 8
- Seller: Retailer
- ID: B0FG7TDMK2
- Design: Unisex, Sleek, Lightweight
- Warranty: 12 months
- Battery Life: Long
- Sports Modes: 128
- Compatible OS: iOS, Android
- Sleep Tracking: Sleep Stages (deep, light, REM)
- Gesture Control: Yes
- Package Includes: Smart Ring, Charging Case, User Manual, Exquisite Packaging Box
- Subscription Fee: None
- Health Monitoring: Heart Rate (HR), Blood Oxygen (SpO2), HRV, Menstrual Cycle Reminders
- Waterproof Rating: IP68
- Automatic Monitoring: Customizable intervals (e.g., every 30 or 60 minutes)
- Blood Pressure Monitoring: Yes
- First listed by seller: April 29, 2026
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
Shipping options
Delivery to 
United States
United States
Available
You want to track your health around the clock, but bulky wristbands get in the way. This smart ring from JIANVNUI gives you a full picture of your wellness without the wrist clutter. Slip it on and forget it's there, even while you sleep or swim. It's for the woman or man who wants serious health data in a discreet, comfortable package you can wear 24/7.
Most fitness trackers just count steps. This ring is different. It breaks down your sleep into deep, light, and REM stages so you know if you're truly resting. It tracks heart rate, blood oxygen, HRV, and even cycles for women. With 128 sport modes, you can log everything from a morning jog to a yoga session. The automatic monitoring lets you set custom intervals for blood pressure and heart rate readings, so you get personalized insights without tapping a screen. And because there's no subscription fee, you own your data.
You can take hands-free photos with a simple gesture, perfect for capturing a moment on a hike. It's IP68 waterproof, so you can wear it in the pool or the shower. The ring is lightweight and stylish enough to wear with jeans or a suit. You get a charging case for easy top-ups, and the battery lasts through your day. With a 12-month warranty, you're covered if anything goes wrong. This ring gives you the health data you need, with the freedom you deserve.
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Smart Ring
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BENIO Gen4 Sliver
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| Brand | JIANVNUI | LIBAXIN | Sqrutri | FKGZJF | ZBNMY | BENIO |
| Model | 8 | Smart Ring | R26 | Gen4 | ||
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| Price | €58.83 | €17.82 | €79.34 | €53.48 | €88.27 | €41.00 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Jun 24, 2026 | May 29, 2026 | May 20, 2026 | May 20, 2026 | May 29, 2026 | Apr 27, 2026 |
| Design | Unisex, Sleek, Lightweight | Four-leaf clover enamel | Slim, Water-resistant, Gold finish | |||
| Battery Life | Long | Not specified | N/A | 3-5 days (ring), 60 days (with charging case) | ||
| Sleep Tracking | Sleep Stages (deep, light, REM) | Automatic, Deep sleep, Light sleep | Deep Sleep, Light Sleep, Wake-up Time | |||
| Gesture Control | Yes | Yes | Remote camera shutter | |||
| Waterproof Rating | IP68 | IP68, 5ATM | IP68 | IP68 | ||
| Size | 8# | 9 | 6# (US size 6.5 approx) | 7 | 9 | |
| Weight | Not specified | N/A | Lightweight | |||
| Sensors | Heart Rate Monitor, Blood Oxygen Sensor, Blood Pressure Sensor | Heart Rate, Blood Oxygen, Blood Pressure, HRV | 4.0 sensors | |||
| Compatibility | iOS, Android | Android 4.4+, iOS 8.4+ | iOS, Android | |||
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