Oura JZ90-54217-11 Smart Ring: Sleep tracking wearable
Meet the Oura Ring 4 – it's not just a smart ring, it's like having a mini health lab wrapped around your finger. This bad boy comes in a sleek all-titanium design that's tougher than your last gym session. Thanks to Smart Sensing, it's got this uncanny ability to learn your rhythms, dishing out insights on everything from how well you slept to whether you're stressing over nothing (again). And with battery life that laughs in the face of your smartphone's pitiful endurance, you might just forget you're wearing it – until it tells you to take a breather.
Here’s the lowdown on what makes it tick:
- It’s like the Oura Ring 3 went to the gym, got a PhD, and came back looking sharp.
- Built to survive your 24/7 hustle, because let’s face it, you’re not taking it off.
- Water-resistant and kind to your skin, because comfort shouldn’t be an afterthought.
- Plays nice with over 40 apps (Apple Health and Google Health Connect are in its social circle).
- And yes, your HSA/FSA can cover the ring, chargers, and even shipping – because health is wealth, right?
Heads up: Don’t skip the Oura Ring 4 Sizing Kit. Trust us, getting the right fit is the difference between 'this is amazing' and 'why did I not listen?'
Features
- Heart rate monitor
- Fitness tracker
- Up to 8 days of battery life
- Smart Sensing technology
- 24/7 wear design
- Water resistant
- Sync with favorite apps
- HSA/FSA eligible
- Sleep tracking wearable
General specs
- Brand: Oura
- Model: JZ90-54217-11
- Seller: Amazon
- ID: B0D9WW49PJ
- Product Dimensions: 1.1 x 1.1 x 0.28 inches
- Item Weight: 7 ounces
- batteries: 1 Lithium Polymer batteries required. (included)
- Other Display Features: Wireless
- Whats in the Box: Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide
- manufacturer: Oura
- Country of Origin: Estonia
- Date First Available: October 3, 2024
- First listed by seller: 5/29/25
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Amazon
Shipping options
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
|
Oura JZ90-54217-11 Sleep tracking wearable
|
aabo ABRING8G Sleep Monitoring with Readiness and Sleep score
|
Smart Ring 7-10 Day Battery Life
|
Oura JZ90-1003-06 Sleep tracking wearable
|
Oura JZ90-1003-09 Sleep Tracking
|
aabo AABO 10 BLACK Sleep Monitoring & Stress Management
|
|
| Brand | Oura | aabo | SEEKZERO | Oura | Oura | aabo |
| Model | JZ90-54217-11 | ABRING8G | JZ90-1003-06 | JZ90-1003-09 | AABO 10 BLACK | |
| Color | ||||||
| Rating |
|
|
|
|
|
|
| Price | $349.00 | $249.00 | $86.41 | $299.91 | $279.00 | $299.00 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 2, 2026 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 |
| Product Dimensions | 1.1 x 1.1 x 0.28 inches | 2.72 x 4.17 x 4.17 inches | 1.1 x 1.1 x 0.28 inches | 0.94 x 0.94 x 0.28 inches | 0.87 x 0.87 x 0.29 inches | |
| Item Weight | 7 ounces | 200 Grams | 3.2 ounces | 7.8 ounces | 7.8 ounces | 200 Grams |
| batteries | 1 Lithium Polymer batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 AA batteries required. (included) | |
| Other Display Features | Wireless | Wireless | Wireless | |||
| manufacturer | Oura | SHENZHEN GREPOW BATTERY CO., LTD | Oura | Oura | ||
| Country of Origin | Estonia | China | Estonia | Estonia | ||
| Date First Available | October 3, 2024 | February 10, 2025 | January 19, 2024 | January 19, 2024 | ||