UouNeaCo BJ01-Gray-009 Ultra Light Smart Ring: 24/7 Health Monitoring
Meet the Ultra Light Smart Ring – it's like having a mini health lab on your finger, but way cooler and without the lab coat. Weighing in at a featherlight 2.5g, this little powerhouse keeps tabs on your heart rate, blood oxygen, and even how well you're sleeping (spoiler: probably not enough). And yeah, it's tough enough to handle whatever you throw at it, thanks to that 10ATM waterproof rating. Plus, with a battery that lasts a week, you can forget about nightly charging – unless you're into that sort of thing.
Here's the lowdown on what makes it tick:
- Ever wondered what your heart's up to? Now you'll know, down to the very beat.
- Sleep tracking that goes deep, because REM cycles are more than just a cool band name.
- Whether you're running, swimming, or just pretending to exercise, there's a mode for that – eight, to be exact.
- So thin at 2mm, you'll forget it's there (until it reminds you to move, that is).
- Plays nice with both iOS and Android, because exclusivity is so last season.
Features
- Advanced Sleep Analysis
- 8 Sport Modes & Activity Tracking
- Slim Design & Smart Features
- Perfect Fit Guide
- 24/7 Health Monitoring
General specs
- Brand: UouNeaCo
- Model: BJ01-Gray-009
- Seller: Amazon
- ID: B0F53JXVK3
- package_dimensions: 3.14 x 3.11 x 1.02 inches
- item_weight: 3 Grams
- batteries: 1 Lithium Polymer batteries required. (included)
- date_first_available: April 16, 2025
- country_of_origin: China
- memory_storage_capacity: 3 MB
- First listed by seller: 6/10/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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$18.99
$32.99
Last price update: 11/9/25
Available to order
Price History for seller Amazon
Shipping options
Delivery to 
United States
United States
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Comparison with similar products
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UouNeaCo BJ01-Gray-009 24/7 Health Monitoring
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Smart Fitness Ring Activity tracking
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Smart Ring Advanced Health Tracking
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| Brand | UouNeaCo | UouNeaCo | Weylmd | JIANVNUI | MUNBYN | |
| Model | BJ01-Gray-009 | R11-Black-013 | JIANVNUI | |||
| Color | ||||||
| Rating |
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| Price | $18.99 | $59.99 | $9.13 | $5.88 | $49.99 | $69.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
| package_dimensions | 3.14 x 3.11 x 1.02 inches | 4.05 x 3.11 x 1.22 inches | 3.54 x 3.15 x 1.42 inches | 3.1 x 2.8 x 1.97 inches | ||
| item_weight | 3 Grams | 3 Grams | 3.52 ounces | 3.2 ounces | ||
| batteries | 1 Lithium Polymer batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 9V batteries required. | Nonstandard Battery batteries required. | ||
| date_first_available | April 16, 2025 | April 16, 2025 | March 18, 2025 | June 26, 2025 | ||
| country_of_origin | China | China | China | China | ||
| memory_storage_capacity | 3 MB | 3 MB | 1.5 MB | |||
Ultra Light Smart Ring
$18.99
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