The Oura Ring 4 Ceramic Cloud is the off-white member of Oura’s ceramic smart ring range. Oura describes Cloud as soft off-white, dreamy and versatile, and it is the finish Oura itself uses most in its ceramic photography. This ring is US size 8. Under the glossy zirconia ceramic sits a seamless titanium interior with the sensors for sleep, heart rate, heart rate variability, night-time blood oxygen, temperature trends and activity. Results appear in the Oura app for iOS and Android, and the battery lasts 5 to 8 days depending on size, settings and use.
Table of Contents
Why an off-white smart ring
Most wearables come in black, grey or metal tones. The Oura Ring 4 Ceramic Cloud goes the other way: a creamy off-white with a polished ceramic sheen that looks closer to a piece of porcelain jewellery than to a gadget. On the hand it is understated in daylight and softly bright under evening light. Because it is neutral, Cloud sits comfortably next to yellow gold, rose gold or silver rings and bracelets, and it does not clash with any watch strap. Of the four ceramic finishes (Midnight, Cloud, Tide and Petal), it is the most versatile choice if you want one ring for work, the gym and evenings out.
Who the Oura Ring 4 Ceramic Cloud suits
The Oura Ring 4 Ceramic Cloud suits people who dress in light colours, wear white or cream often, or simply like a clean, minimal look. It also fits a wedding season or formal events, when a watch can feel out of place but you still want to track sleep and recovery, and anyone who finds dark rings too heavy-looking on a light skin tone or a slim finger. It is also a safe gift when you do not know the person’s taste, because off-white goes with almost everything. If you want something bolder, Tide and Petal add colour.
Keeping a white ceramic ring clean
Oura picked zirconia ceramic for its scratch resistance, lustre and colour, and each ring is fired to harden the material and give it a smooth, polished surface. Oura also says minor scratches from regular wear are normal, and that hard ceramic can pick up colour from softer metals such as dumbbell or kettlebell handles. On an off-white finish like Cloud, those grey transfer marks show up more than on Midnight, so expect to use the ceramic polishing pad in the box now and then; Oura describes these scuffs as erasable. Make-up, sunscreen and hand cream can also dull the shine, and a wipe with a soft damp cloth brings the Oura Ring 4 Ceramic Cloud back.
Sensors and health features
Red and infrared LEDs measure blood oxygen, and green and infrared LEDs alternate to measure heart rate, heart rate variability and respiration rate 24/7. A digital temperature sensor tracks temperature trends and an accelerometer tracks movement. Oura turns this into a Sleep Score with deep, REM and light stages, a Readiness Score, automatic detection of more than 40 activities, daytime stress and resilience, cardiovascular age, cardio capacity (an estimated VO2 max), nighttime breathing insights and temperature-based cycle insights and period prediction.
Battery, charging and water
Oura quotes 5 to 8 days of battery life for the Oura Ring 4 Ceramic Cloud, with the real figure depending on ring size, app settings, features, activity and battery age. Charging typically takes 20 to 80 minutes depending on battery level, with the size-specific charger and USB-C cable from the box. Water resistance is rated up to 100 m, so you can keep it on for showers and swimming. Connection is Bluetooth Low Energy, airplane mode is supported, and firmware updates arrive automatically through the Oura app.
Size 8, the app and membership
This listing is US size 8 only. The ring needs a snug fit for accurate readings, and smart ring sizes do not always match jewellery sizes, so confirm your size before ordering; a wrong size is treated as a change-of-mind return. Oura notes that the ceramic version is slightly thicker than titanium Oura Ring 4 because of the material. You can link more than one Oura Ring 4 style to the same account and switch finishes. Oura’s terms say a paid Oura Membership is required to access your data once any prepaid membership period ends.
Who This Is Not For
The Oura Ring 4 Ceramic Cloud is not for anyone who wants a screen, notifications or GPS, since there is no display. It is not for buyers who want to avoid a subscription: Oura requires a paid Membership to access data in the app after any prepaid period. The Oura app does not support Arabic. It is not a medical device. It is not the best finish for people who handle metal weights or tools every day and do not want to polish the ring, because grey metal marks are most visible on off-white ceramic; Midnight hides them better. And this unit is size 8 only.
Ordering from Totot
Totot sells the Oura Ring 4 Ceramic Cloud brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. We deliver UAE-wide in up to 3 business days, and delivery is free on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Wearable devices range, or see the official Oura Ring 4 Ceramic page on ouraring.com.
Oura Ring 4 Ceramic Cloud Specifications
- Model: Oura Ring 4 Ceramic
- Finish: Cloud (soft off-white)
- Size: US 8
- Materials: High-performance zirconia ceramic exterior, seamless titanium interior
- Width: 7.9 mm
- Thickness: 3.51 mm
- Weight: 5.1–8.1 g depending on ring size
- Sensors: Red and infrared LEDs (blood oxygen); green and infrared LEDs (heart rate, HRV, respiration rate); digital temperature sensor; accelerometer
- Battery life: 5–8 days, depending on ring size, app settings, features, activity and battery age
- Charging time: Typically 20–80 minutes, depending on battery level
- Water resistance: Up to 100 m / 328 ft
- Connectivity: Bluetooth Low Energy, automatic firmware updates via the Oura app, airplane mode support
- App: Oura app for iOS and Android; English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, Danish; integrates with 40+ apps
- Membership: Paid Oura Membership needed to access your data in the Oura app once any prepaid period ends
- In the box: Oura Ring 4 Ceramic, size-specific charger, USB-C cable, ceramic polishing pad
- Warranty: 1-year warranty from Totot
Oura Ring 4 Ceramic Cloud FAQ
What colour is the Oura Ring 4 Ceramic Cloud?
Oura describes Cloud as a soft off-white with a polished ceramic finish.
Does the white ceramic get dirty?
Yes, it can show marks: Oura says hard ceramic can pick up colour from softer metals, and those scuffs are erasable with the polishing pad in the box.
Does Cloud go with gold and silver jewellery?
Yes. As a neutral off-white it pairs with yellow gold, rose gold and silver.
How long does the Oura Ring 4 Ceramic Cloud battery last?
5 to 8 days, according to Oura, depending on size, settings and use.
Do I need a subscription?
Yes. Oura requires a paid Oura Membership to access your data in the app once any prepaid period ends.
Is the ring water resistant?
Yes, up to 100 m according to Oura.
Is it genuine?
Yes. We sell the genuine Oura Ring 4 Ceramic Cloud, brand-new in its sealed box.
How long does delivery take?
No more than 3 business days to any emirate, free from AED 300; the live fee for your order appears at checkout.
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