Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
WNRTSA Rose Gold, Size 8 Smart Ring
Available offers (2)
Current
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Rose Gold, Size 8
Retailer
€35.65
Available to order
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Features
- Heart rate monitoring
- Blood oxygen monitoring
- Sleep monitoring
- Long-lasting battery
- No subscription required
- IP68 waterproof
- Ultra-thin design
- All-day comfort
- Ergonomic fit
General specs
- Brand: WNRTSA
- Seller: Retailer
- ID: B0GHPJCMQG
- Size: 8
- Brand: WNRTSA
- Battery Life: Long-Lasting
- Product Type: Smart Ring, Fitness Tracker
- Intended Users: Women, Men
- Design Features: Ultra-thin, Slimmer and lighter than most other options, Ergonomic ball-shaped bonding
- Comfort Features: All-day comfort, Snug fit, Comfortable to wear for extended periods
- Water Resistance Rating: IP68
- Subscription Requirement: No Subscription
- Health Monitoring Features: Heart Rate Monitoring, Blood Oxygen Monitoring, Sleep Monitoring
- First listed by seller: April 15, 2026
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
| Date | Price |
|---|---|
| 4/15/26 | €35.65 |
| 3/25/26 | €35.65 |
Shipping options
Delivery to 
United States
United States
Available
For the active professional who wants health insights without a bulky wrist tracker, this smart ring fits seamlessly into your daily routine. It monitors your heart rate during a morning jog and tracks your sleep patterns without interrupting your rest.
While many fitness wearables focus on exercise data, this ring provides a holistic view of your well-being. The long-lasting battery means you can wear it for days without worrying about charging, and the IP68 waterproof rating lets you keep it on during showers or swims. The ultra-thin design ensures it stays comfortable all day, so you can focus on your health goals without distraction.
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| Brand | WNRTSA | GANSI | SARUNN ER | MUNBYN | LISASRING | Uni-Green |
| Model | JYZNJZ-001 | SR-7 | R26 | |||
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| Price | €35.65 | €38.33 | €44.57 | €26.74 | €80.23 | €25.38 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Apr 17, 2026 | Apr 9, 2026 | Mar 21, 2026 | Apr 12, 2026 | Mar 21, 2026 | May 18, 2026 |
| Size | 8 | 8 | 7 | 7 | ||
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | |||
| Water Resistance | IP68 | 5ATM, IP68 | 5 ATM | |||
When this device makes sense
Product confidence
Reviews
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