Oura JZ90-54217-09 Smart Ring: Accurate biometric tracking
Meet the Oura Ring 4—your new health sidekick, packed with the kind of tech that makes you feel like you've got a mini lab on your finger. It's not just smart; it's genius, tracking everything from how well you slept last night to whether your heart's doing the cha-cha correctly. And with over 30 biometrics under its belt (or should we say, around your finger?), it's like having a personal health coach that never clocks out.
Oh, and about that battery life? A whopping 8 days. Yeah, you heard that right. It's water-resistant, comfy enough to forget you're wearing it (until it reminds you to move, that is), and plays nice with over 40 apps. Apple Health, Google Health Connect, Strava—you name it, it's probably on the list.
Heads up: Don't skip the sizing kit. Because nothing says 'oops' like a ring that's either a makeshift bracelet or permanently stuck on your finger. Plus, your first month's membership is on the house—after that, it's your call: monthly or yearly, no pressure.
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: JZ90-54217-09
- Seller: Amazon
- ID: B0D9WWB3WX
- product_dimensions: 1.02 x 1.02 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
- human_interface_input: Buttons
- 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: 512 KB
- 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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Price History for seller Amazon
Shipping options
United States
Comparison with similar products
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Oura JZ90-54217-09 Accurate biometric tracking
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Oura JZ90-54218-11 Accurate biometric tracking
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Oura JZ90-1003-06 Sleep tracking wearable
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Oura JZ90-54217-11 Sleep tracking wearable
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | JZ90-54217-09 | JZ90-1003-09 | JZ90-54218-11 | JZ90-1003-06 | JZ90-1003-08 | JZ90-54217-11 |
| Color | ||||||
| Rating |
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| Price | $349.00 | $279.00 | $399.00 | $299.91 | $214.26 | $349.00 |
| 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 |
| product_dimensions | 1.02 x 1.02 x 0.28 inches | 0.98 x 0.98 x 0.31 inches | 1.1 x 1.1 x 0.28 inches | |||
| item_weight | 6.3 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) | |||
| 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 | |||
| manufacturer | Oura | Oura | Oura | |||
| country_of_origin | Estonia | Estonia | Estonia | |||
| date_first_available | October 3, 2024 | October 3, 2024 | October 3, 2024 | |||
| Product Dimensions | 0.94 x 0.94 x 0.28 inches | 1.1 x 1.1 x 0.28 inches | 0.91 x 0.91 x 0.28 inches | |||
| Item Weight | 7.8 ounces | 7.8 ounces | 8 ounces | |||
| Batteries | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | |||
| Other Display Features | Wireless | Wireless | Wireless | |||
| Department | unisex-adult | unisex-adult | unisex-adult | |||
| Manufacturer | Oura | Oura | Oura | |||
| Country of Origin | Estonia | Estonia | Estonia | |||
| Date First Available | January 19, 2024 | January 19, 2024 | January 19, 2024 | |||
