Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Duobuy Smart Ring Smart health ring
Product details
General specs
- Brand: Duobuy
- Model: Smart Ring
- Color: Black
- Model: Smart Ring
- Warranty: 2 years, manufacturer warranty
- Package Contents: Smart ring × 1, 400 mAh charging case × 1, Magnetic USB charging cable × 1, Type-C cable for charging the case × 1, Instruction manual × 1
Starting from £40.85
Last price update: 5/6/26
The price may have changed — check it on the seller's site
A smart ring with sleep, health and activity tracking, app access, and a supplied charging case. Available in black in the listed ring sizes.
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| Brand | Duobuy | Twievo | EOGBM | Herz | Herz | Wuzutech |
| Model | Smart Ring | Smart Ring | P1 | P1 | P1 | |
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| Price | £40.85 | £52.97 | £75.68 | £45.40 | £45.40 | £45.40 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 6, 2026 | Mar 21, 2026 | Mar 21, 2026 | Apr 29, 2026 | May 8, 2026 | May 6, 2026 |
| batteries | 1 A batteries required. (included) | 1 Lithium Metal batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | |
| Waterproof | IP68 | 5ATM | 5ATM | 5ATM | Yes | |
| Item Weight | 3.52 ounces | 1 Milligrams | 1.58 ounces | 0.07 Kilograms | 2.39 ounces | |
| Package Dimensions | 3.66 x 3.58 x 1.26 inches | 3 x 3 x 2.65 inches | 3 x 3 x 2 inches | 3 x 3 x 2 inches | ||
| Battery Life | 4-6 days on a 1.5-hour charge, Up to half a month on standby | 6 days or 15 days of standby | 6 days or 15 days of standby | 6 days | ||
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