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Oura JZ90-54144-11 Black, Size 11 Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Thumbnail Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura
Available Options
Current
Black, Size 11
Black, Size 11
Amazon
€300.48
Available to order
Price history by variant
Volatility: Medium
Gold, Size 8 0%
€429.62 €300.48 — €429.62
Silver, Size 8 -38.5%
€184.85 €184.85 — €300.48
Silver, Size 10 -35.2%
€194.58 €194.58 — €300.48
Silver, Size 9 -1.2%
€297.02 €214.38 — €300.48
Silver, Size 11 0%
€300.48 €214.38 — €300.48
Black, Size 11 0%
€300.48 €214.38 — €300.48
Features
  • Comprehensive health tracking
  • Up to 8 days battery life
  • All-titanium, water resistant
  • Sizing kit required
  • Membership subscription

Product details

General specs

  • Brand: Oura
  • Model: JZ90-54216-08
  • Brand: Oura
  • Model: Oura Ring 4
  • Sizing: Requires Oura Ring 4 Sizing Kit
  • Display: No screen
  • Sensors: Smart Sensing technology
  • Material: Titanium
  • Vibration: None
  • Advisor Ai: Yes
  • Battery Life: Up to 8 days
  • Release Date: 2024-10-15
  • Compatibility: Android, iOS
  • Health Metrics: 50+ health metrics
  • Number of Items: 1
  • Water Resistance: Water resistant

If you are interested in more details, you can find full information on the seller's page.

Amazon live offers

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Top live offer is the offer currently shown first for this Amazon listing. It may differ from the lowest available price.

FBA means the order is fulfilled by Amazon, even when the seller is a third-party merchant.

Shippable means the offer is listed as available for delivery on Amazon.

New, Used and Refurbished describe the item condition shown for that Amazon offer.

3 live offers
Top live offer
€300.48
Free shipping
New Sold by Amazon FBA Shippable
New from
€295.30 Only from New + Shippable live offers
New offers
Sold by Amazon · FBA · Shippable
€300.48
Third-party seller · Shippable
€295.30
Offers updated: 8/31/26
Amazon View on Amazon
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
Price History for seller Amazon

Shipping options

Delivery to USUnited States
Available

You are a busy professional tracking why some days you feel energized and others you hit a wall. The Oura Ring 4 goes beyond sleep monitoring. It reveals hidden patterns in your daily life. The Smart Sensing technology adapts to your finger for precise, continuous readings. One morning, your readiness score dips to 72. You recall a restless night, and the ring detected your elevated heart rate and body temperature shifts. Without a screen or buzz, the ring guided you toward a lighter day and an earlier bedtime, helping you trust your body's needs.

Wear the titanium ring 24/7. It resists water, survives workouts, and lasts up to 8 days per charge. You forget it is there. The Oura App and AI advisor turn over 50 health metrics, including women's health and stress levels, into clear guidance. After a tense afternoon, the app suggests a breathing session to lower your heart rate. Oura Ring 4 connects your habits to your health, so you make better choices effortlessly.

Ring 4 - Black - Size 11 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You... — Smart Ring, Oura

Oura JZ90-54144-11 Black Comprehensive health tracking

€300.48
Amazon View on Amazon
Affiliate link. As an Amazon Associate I earn from qualifying purchases.

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Product confidence

Reviews

4.0
(9,121 ratings)

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