Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
ZBNMY Size 8, Silver Smart Ring
Available offers (7)
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Current
Size 8, Silver
Retailer
€44.48
Available to order
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Price history by offer
Volatility: HighFeatures
- Sleep monitoring
- Blood oxygen monitoring
- Heart rate monitoring
- Activity tracking
- Waterproof design
- No subscription required
General specs
- Brand: ZBNMY
- Seller: Retailer
- ID: B0FNK5Y2KQ
- Size: 8
- Material: Metal
- Battery Life: 7–10 d
- Connectivity: Bluetooth
- Display Type: None
- Charging Method: Magnetic
- OS Compatibility: Android, iOS
- Water Resistance: IP68
- Bluetooth Version: 5.0
- First listed by seller: December 9, 2025
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
For the active person who wants health insights without another screen to check, this smart ring tracks your day from workout to bedtime. It's more than a fitness tracker; it's a subtle companion that understands your body's natural rhythms.
The ring captures your heart rate during a morning jog and your blood oxygen levels as you sleep. You'll see sleep quality analysis that explains why you feel refreshed or tired. The waterproof design means you never have to remember to take it off before a shower or swim.
Connect it to your Alexa device for hands-free updates on your daily progress. With no subscription required, you get continuous health monitoring and activity tracking in a durable, silver design that fits any lifestyle.
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| Brand | ZBNMY | ZBNMY | ZBNMY | SARUNN ER | FKGZJF | Tiantianka |
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| Price | €44.48 | €35.58 | €35.59 | €14.10 | €88.10 | €30.94 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 8, 2026 | Mar 21, 2026 | May 12, 2026 | Mar 21, 2026 | Apr 23, 2026 | Mar 21, 2026 |
| Size | 8 | 11 | 10 | 7 | 8 | 7 |
| Material | Metal | Titanium Alloy | Titanium Alloy | Metal | Titanium Alloy | |
| Battery Life | 7–10 d | 7–10 d | 5–7 d | 3–5 d | 7–10 d | |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | |
| Display Type | None | None | OLED | None | ||
| Charging Method | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
| OS Compatibility | Android, iOS | Android, iOS | iOS, Android | Android, iOS | Android 4.4, iOS 8.4 | Android, iOS |
| Water Resistance | IP68 | IP68 | IP68 | IP68 | IP68 | IP68 |
Smart Ring Silver Sleep monitoring
€44.48
When this device makes sense
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