Oura JZ90-54218-11 Smart Ring: Accurate biometric tracking
Forget charging every night; this bad boy lasts up to 8 days on a single charge. And with no screens or buzzes to distract you, it's all about keeping you in the moment. Plus, it plays nice with over 40 apps—Apple Health, Google Health Connect, Strava, you name it. Oh, and here's a sweet perk: it's HSA/FSA eligible, so your health investment just got smarter.
Before you jump in, though, grab the Oura Ring 4 Sizing Kit to make sure it fits just right (because one size does not fit all, despite what some socks claim). And yes, your first month of Oura Membership is on us, packed with insights to keep you on top of your health game.
General specs
- Brand: Oura
- Model: JZ90-54218-11
- Seller: Amazon
- product_dimensions: 0.98 x 0.98 x 0.31 inches
- item_weight: 6.3 ounces
- batteries: 1 Lithium Polymer batteries required. (included)
- connectivity_technologies: Bluetooth
- gps: No GPS
- other_display_features: Wireless
- human_interface_input: Touchscreen
- 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
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | JZ90-54218-11 | JZ90-54144-11 | JZ90-54217-10 | JZ90-54217-09 | JZ90-1003-06 | JZ90-1003-09 |
| Color | ||||||
| Rating |
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| Price | $399.00 | $349.00 | $349.00 | $349.00 | $199.00 | $199.00 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | July 19, 2025 | June 29, 2025 | July 20, 2025 | July 18, 2025 | June 27, 2025 | June 28, 2025 |
| product_dimensions | 0.98 x 0.98 x 0.31 inches | 1.1 x 1.1 x 0.28 inches | 1.06 x 1.06 x 0.28 inches | 1.02 x 1.02 x 0.28 inches | ||
| item_weight | 6.3 ounces | 6.7 ounces | 6.3 ounces | 6.3 ounces | ||
| batteries | 1 Lithium Polymer batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 Lithium Polymer batteries required. (included) | ||
| connectivity_technologies | Bluetooth | Bluetooth | Bluetooth | Bluetooth | ||
| human_interface_input | Touchscreen | Buttons | Buttons | |||
| whats_in_the_box | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide | ||
| manufacturer | Oura | Oura | Oura | Oura | ||
| country_of_origin | Estonia | Estonia | Estonia | Estonia | ||
| date_first_available | October 3, 2024 | October 3, 2024 | October 3, 2024 | October 3, 2024 | ||
| special_features | Heart Rate Monitor, Stress Monitor | Heart Rate Monitor, Activity Tracker | Heart Rate Monitor, Activity Tracker | |||