Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
JIANVNUI JIAHE02 Rose Gold, Size 7 Smart Ring
Available offers (2)
Current
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Rose Gold, Size 7
Retailer
€58.83
Available to order
—
Price history by offer
Volatility: HighFeatures
- Heart rate, blood oxygen, HRV, and menstrual cycle tracking
- Sleep stage analysis and 128 sports modes
- Automatic blood pressure and heart rate monitoring
- IP68 waterproof for swimming and showering
- Gesture control for hands-free photo snapping
- No app subscription fees
- Sleek, lightweight unisex design with long battery life
General specs
- Brand: JIANVNUI
- Model: JIAHE02
- Seller: Retailer
- ID: B0FG7WT8ZG
- Size: 7
- Material: Metal
- Battery Life: 7–10 d
- Connectivity: Bluetooth
- Display Type: None
- Charging Method: Magnetic
- OS Compatibility: iOS, Android
- Storage Capacity: 128 MB
- Water Resistance: IP68
- First listed by seller: January 14, 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
This smart ring is for the active person who wants to understand their health without constant phone checks. Think of it as your personal wellness coach, not just a fitness tracker. It automatically logs your heart rate and blood oxygen while you work, giving you a clear picture of your daily stress and recovery.
The ring tracks sleep stages so you can adjust your routine for better rest. Its gesture control lets you snap photos during hikes without fumbling with your phone. You get all this with no subscription fees, making it a straightforward tool for long-term health management.
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| Brand | JIANVNUI | Tiantianka | Weylmd | FKGZJF | Aichiken | Fvtga |
| Model | JIAHE02 | B0G2CZ7KZV | 739562467210 | FT Ring | ||
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| Price | €58.83 | €31.00 | €47.24 | €88.27 | €44.57 | €73.98 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | Apr 23, 2026 | Apr 15, 2026 | Mar 21, 2026 |
| Size | 7 | 7 | 9 | 8 | 7 | 8 |
| Material | Metal | Titanium Alloy | Metal | |||
| Battery Life | 7–10 d | 7–10 d | 3–5 d | 3–5 d | ||
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | |
| Charging Method | Magnetic | Magnetic | Magnetic | Magnetic | ||
| OS Compatibility | iOS, Android | Android, iOS | Android, iOS | Android 4.4, iOS 8.4 | Android, iOS | Android 5.0+, iOS 10+ |
| Water Resistance | IP68 | IP68 | IP68 | IP68 | IP68 | IP68 |
When this device makes sense
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