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OURA

Oura Ring 4 Ceramic - Petal - Size 4 - Size Before You Buy

$499.00
size5

166+ bought in the past month

About this item

  • SIZE BEFORE YOU BUY - Oura Ring sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see “From the manufacturer” section below
  • OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
  • ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health,and women’s health metrics. Smart Sensing technology adapts to you — delivering accurate, continuous data, day and night
  • LONG LASTING BATTERY - With 5 to 8 days of battery life, no screens and no vibrations, Oura Ring 4 Ceramic allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
  • HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping.
  • DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.
  • SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android — Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more.
  • LOOKING FOR THE BEST HEALTH TRACKER? - Whether you’re searching for a sleep ring or fitness ring, Oura Ring 4 is for you — this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress — in style.

Key details

color_spec
Petal
Special Feature
Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
Connectivity Technology
Bluetooth
Wireless Communication Standard
Bluetooth
Battery Cell Composition
Lithium Polymer

Dimensions and fit

dimensions
4.53 x 4.45 x 1.42 inches
weight
6.8 ounces
package_dimensions
4.53 x 4.45 x 1.42 inches
item_weight
6.8 ounces

Technical specifications

item_model_number
JZ90-57459-04

Item information

GPS
GPS Via Smartphone
Shape
Round
Brand
OURA
Style
Minimalist
Color
Petal
Target Audience
Unisex Adults
batteries
1 Lithium Polymer batteries required. (included)
best_sellers_rank
#595,998 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,314 in Women's Band Rings
connectivity_technologies
Bluetooth
special_features
Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
other_display_features
Wireless
human_interface_input
Buttons
whats_in_the_box
Information Booklet, Oura Ring 4 Ceramic, Oura Ring 4 Charger, Quick Start Guide, USB Cable
department
womens
manufacturer
Oura
date_first_available
October 1, 2025
Highlights

About this item

  • SIZE BEFORE YOU BUY - Oura Ring sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see “From the manufacturer” section below
  • OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
  • ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health,and women’s health metrics. Smart Sensing technology adapts to you — delivering accurate, continuous data, day and night
  • LONG LASTING BATTERY - With 5 to 8 days of battery life, no screens and no vibrations, Oura Ring 4 Ceramic allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments
  • HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping.
  • DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.
  • SYNC WITH YOUR FAVORITE APPS - Compatible with iOS and Android — Oura seamlessly integrates with over 40 apps including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava, & more.
  • LOOKING FOR THE BEST HEALTH TRACKER? - Whether you’re searching for a sleep ring or fitness ring, Oura Ring 4 is for you — this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress — in style.

From the brand

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Product videos

Product video 1

Customer reviews

204 reviewsPositive

Rated 4.4/5 across 204 reviews — well received overall.

  • 100% of sampled reviews give 4–5 stars.

Customers say

Customers find the Oura Ring highly accurate for sleep and activity tracking, and appreciate its stylish design and comfort.

Generated from the text of customer reviews

Reviews with images

Customer review image for Stylish, smart, and super comfortable!Customer review image for Amazing wellness tracker!Customer review image for The perfect smart ring!Customer review image for The perfect smart ring!Customer review image for The perfect smart ring!Customer review image for Beautiful and Smart — Absolutely Love My Oura Ring 4!
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★★★★★

Stylish, smart, and super comfortable!

I absolutely love my Oura Ring 4! The design is so sleek and elegant — it looks beautiful on my hand and goes with everything. It’s lightweight, comfortable to wear all day, and the health tracking is incredibly accurate. I especially love how it helps me understand my sleep and daily activity better. Totally worth it! Read more

Customer review image for Stylish, smart, and super comfortable!
Dina Rauliuk
★★★★★

Amazing wellness tracker!

I NEVER take this off! I’m into living a healthy lifestyle and this beautiful ring is the perfect fashion accessory and an advanced wellness tracker! It’s tracks your HR, sleep quality, calories burnt, activities, stress etc! Goes on for days without having to recharge! Read more

Customer review image for Amazing wellness tracker!
Honey.bon.bon
★★★★★

Great pick

The Oura Ring Ceramic is sleek, elegant, and surprisingly lightweight. It tracks sleep, readiness, and activity with impressive accuracy. The ceramic finish feels premium and comfortable for all-day wear. A perfect blend of health tech and minimalist luxury. Read more

Aishika
★★★★★

Amazing health tech

The Oura Ring Gen4 is a stylish smart ring that’s great for tracking sleep and recovery. It’s comfy, lasts several days on a charge, and looks more like jewelry than tech. The only downsides are the price, required subscription, and limited fitness tracking compared to a smartwatch. Read more

Michel Huizar
★★★★★

The ring that smells me better than my boyfriend

Let me tell you something: the Oura Ring 4 in Ceramic Petal is not just pretty — it is a tiny, psychic life coach that lives on my finger. This ring tells me EVERYTHING. How I slept. How I should sleep. How I thought I slept but apparently didn’t because it told me I was “restless” (rude but fair). It even knows when I’m being dramatic and calls it “elevated stress levels.” The color? Stunning. Like “soft feminine energy but also capable of running your entire wellness regimen” kind of vibe. I’ve gotten more compliments on this ring than any actual jewelry I own, and half the time people don’t even realize it’s tracking my whole life. And the accuracy? Chef’s kiss. I check it in the morning like I’m waiting for my report card. If it ever gives me an A+, I’m framing the screenshot. If you want a gorgeous ring that coaches your health, reads your mind, and gently drags you for staying up too late scrolling TikTok… this is it. Absolute perfection. 💖💍📊 Read more

The coconut bird
★★★★★

The perfect smart ring!

I love the quality its just like a normal ring and fits perfectly. Its not only waterproof but the durability is perfect to wear all day while doing multiple activities. Proven functionality and it tracks your movements and health status continuously. You will need the sizing kit to get that perfect fit but it fits just like a standard ring would and its super smooth to wear all day. Read more

Customer review image for The perfect smart ring!Customer review image for The perfect smart ring!Customer review image for The perfect smart ring!
Marina
★★★★★

Wasn’t Sure at First—Now I’m So Glad I Have It

I wasn’t sure I wanted the Oura Ring 4 Ceramic, but just 48 hours in, I’m so glad my husband got this for me for Christmas. It’s already become something I check daily. Comfort & Design: The ring is incredibly comfortable and lightweight. I honestly forget I’m wearing it, even while sleeping. The ceramic finish looks sleek and modern and feels very high-end. Insightful Tracking: The data is fascinating and easy to understand. Sleep, readiness, and activity insights feel meaningful and helpful—not overwhelming. It’s already made me more aware of my sleep quality and recovery. Easy to Wear, Easy to Use: I love that it doesn’t feel bulky like a watch and works seamlessly in the background. The app is intuitive and well designed. Quick Buy-In: I expected this to be something I’d have to “get used to,” but instead I was hooked almost immediately. Within two days, I understood the value. Overall Impression: If you’re on the fence like I was, this might surprise you. Comfortable, insightful, and beautifully designed—it’s a gift I didn’t know I needed but now wouldn’t want to be without. Read more

DLynn
★★★★★

Beautiful and Smart — Absolutely Love My Oura Ring 4!

Absolutely love my Oura Ring 4 in Tide! The ceramic color is gorgeous and looks like real jewelry, not tech. It’s super comfortable, tracks my sleep and health so accurately, and the battery lasts almost a week. Totally worth it! Read more

Customer review image for Beautiful and Smart — Absolutely Love My Oura Ring 4!
Yuliia Serbina
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