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Oura JZ90-54217-09 Size 8 Smart Ring

Features
  • Accurate biometric tracking
  • Up to 8 days battery life
  • All-titanium design
  • Water resistant
  • Syncs with 40+ apps
  • HSA/FSA eligible

Product details

General specs

  • Brand: Oura
  • Model: JZ90-54216-08
  • Material: Titanium
  • Battery Life: 5–8 d, 5–7 d, 8 d
  • Connectivity: Bluetooth
  • manufacturer: Oura
  • Charging Method: Magnetic
  • OS Compatibility: iOS, Android
  • Water Resistance: Water resistant, 100 m, 10ATM
  • 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.

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$349.00
Last price update: 12/6/25
Available to order
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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.

Oura JZ90-54217-09 Accurate biometric tracking

$349.00

Reviews

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(2 reviews)
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Ethan Dupont
Ethan D. FR Marseille
June 6, 2025
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