Oura JZ90-54217-10 Smart Ring: Accurate biometric tracking
Dressed in all-titanium, this ring is tough enough to handle your wildest adventures yet comfy enough to forget you're wearing it. Plus, it's water-resistant—because showers and swims shouldn't stop your health tracking. And with up to 8 days of battery life, you'll spend less time charging and more time living.
Here's the lowdown on what makes it stand out: accurate tracking that doesn't miss a beat, plays nice with both iOS and Android, and buddies up with over 40 apps. Oh, and it's HSA/FSA eligible, so your wallet can breathe a sigh of relief.
Before you dive in, grab the Oura Ring 4 Sizing Kit—because nobody likes a ring that's too tight or, heaven forbid, flies off during a victory dance. Your first month of Oura Membership is on the house, unlocking even deeper insights to keep you at the top of your game.
General specs
- Brand: Oura
- Model: JZ90-54217-10
- Seller: Amazon
- product_dimensions: 1.06 x 1.06 x 0.28 inches
- item_weight: 6.3 ounces
- batteries: 1 Lithium Polymer batteries required. (included)
- connectivity_technologies: Bluetooth
- special_features: Heart Rate Monitor, Activity Tracker
- 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
- ram_memory_installed_size: 16 MB
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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United States
Comparison with similar products
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Oura JZ90-54217-10 Accurate biometric tracking
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Oura JZ90-54144-11 Accurate biometric tracking
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Oura JZ90-54217-09 Accurate biometric tracking
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Oura JZ90-1003-06 Sleep tracking wearable
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Oura JZ90-1003-09 Sleep Tracking
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Oura JZ90-54217-11 Sleep tracking wearable
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | JZ90-54217-10 | JZ90-54144-11 | JZ90-54217-09 | JZ90-1003-06 | JZ90-1003-09 | JZ90-54217-11 |
| Color | ||||||
| Rating |
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| Price | $349.00 | $349.00 | $349.00 | $199.00 | $199.00 | $349.00 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 15, 2025 | June 12, 2025 | June 15, 2025 | May 11, 2025 | June 12, 2025 | June 15, 2025 |
| product_dimensions | 1.06 x 1.06 x 0.28 inches | 1.1 x 1.1 x 0.28 inches | 1.02 x 1.02 x 0.28 inches | 1.1 x 1.1 x 0.28 inches | ||
| item_weight | 6.3 ounces | 6.7 ounces | 6.3 ounces | 7 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 | |||
| special_features | Heart Rate Monitor, Activity Tracker | Heart Rate Monitor, Stress Monitor | Heart Rate Monitor, Activity Tracker | |||
| 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 | ||
Smart Ring
Reviews
Samuel Lefèvre
June 7, 2025
María Fischer
June 3, 2025
Julien Anderson
June 2, 2025