Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Size 20, black Smart Ring Activity Tracker
Available offers (4)
Current
Size 20, black
Newegg
€74.86
Available to order
Features
- Tracks heart rate, sleep, and blood oxygen.
- Compatible with Android/iOS.
- Charging is mentioned; the charging method and runtime are not specified.
General specs
- Seller: Newegg
- ID: 9SIAEWSK939450
- Charging: Charging is mentioned; no charging method or runtime is specified.
- Part Number: 1005006237504124Size20black
- Product Type: Smart ring activity tracker
- Stated app compatibility: Android/iOS
- Stated monitoring functions: Heart rate, sleep, and blood oxygen monitoring
- First listed by seller: October 3, 2026
If you are interested in more details, you can find full information on the seller's page.
€74.86
Last price update: 10/3/26
Available to order
Shipping options
Delivery to 
United States
United States
Available
Smart ring activity tracker with stated heart rate, sleep, and blood oxygen monitoring. Android/iOS compatibility is stated. Charging is mentioned, but no charging method or runtime is specified.
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| Rating |
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| Price | €74.86 | €59.71 | €14.12 | €31.19 | €59.71 | €44.55 |
| Seller | Newegg | Newegg | Retailer | Retailer | Newegg | Retailer |
| Update | Oct 7, 2026 | Oct 7, 2026 | Mar 21, 2026 | Mar 21, 2026 | Oct 7, 2026 | Apr 27, 2026 |
| Part Number | 1005006237504124Size20black | 1005006282241664Diameter18mmblack | 1005006282241664Diameter20mmblack | |||
| Product Type | Smart ring activity tracker | smart ring activity tracker | smart ring activity tracker | |||
| Size | 7 | 7 | 7 | |||
Smart Ring Activity Tracker Tracks heart rate, sleep, and blood oxygen.
€74.86
When this device makes sense
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