Oura JZ90-54217-10 Smart Ring: Accurate biometric tracking
Meet the Oura Ring 4—your new health guru, wrapped in a sleek, tech-savvy package. It's not just a ring; it's like having a mini lab on your finger, thanks to its Smart Sensing tech. This bad boy keeps tabs on everything from how well you slept to whether you're stressing too much (we've all been there), covering over 30 health metrics. And yes, it even has a special focus on women's health, because let's face it, that's important.
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.
Features
- Up to 8 days battery life
- All-titanium design
- Water resistant
- Syncs with 40+ apps
- HSA/FSA eligible
- Accurate biometric tracking
General specs
- Brand: Oura
- Model: JZ90-54217-10
- Seller: Amazon
- ID: B0D9WT1S2T
- 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
- First listed by seller: 5/29/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
United States
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| Brand | Oura | Victormont | UniJethro | POBOVi | Oura | TIAZUUX |
| Model | JZ90-54217-10 | Gen-11 | SR11M | Gen 1 | JZ90-1003-06 | Smart Ring |
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| Price | $349.00 | $99.99 | $39.99 | $99.99 | $299.91 | $29.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 7, 2026 | Dec 6, 2025 | Feb 4, 2026 | Dec 6, 2025 | Dec 6, 2025 | Dec 6, 2025 |
| Item Weight | 6.3 ounces | 5.3 ounces | 7.8 ounces | 2.9 Grams | ||
| batteries | 1 Lithium Polymer batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | |||
| Country of Origin | Estonia | China | Estonia | |||
| Date First Available | October 3, 2024 | October 28, 2024 | January 19, 2024 | |||
