Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Oura Oura Ring 4 Ceramic Dark blue; also described as dark night Ring material: zirconia ceramic.
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Last known price: RUB 49,990.00 (RUB)
Price source: re:Store
Price record dated 10/20/26
Saved price in the source currency; not a current offer. The date refers to the price record, not a stock check.
Features
- Ring material: zirconia ceramic.
- Analyzes sleep phases, breathing, heart-rate variability, and skin temperature.
- The Oura app presents metrics and recommendations.
- A regular Ring 4 and a Ceramic ring can be switched between in the app under one account.
- Manufacturer warranty indicated: yes.
General specs
- Brand: Oura
- Model: Oura Ring 4 Ceramic
- Seller: re:Store
- ID: 4655536
- Size: 09 (19)
- Brand: OURA
- Model Name: Oura Ring 4 Ceramic
- Product Type: Smart ring
- Ring material: Zirconia ceramic
- Product family: Ring 4
- App presentation: The Oura app presents metrics and recommendations
- App account switching: A regular Ring 4 and a Ceramic ring can be switched between in the app under one account
- Sleep metrics analyzed: Sleep phases, breathing, heart-rate variability, and skin temperature
- Manufacturer warranty indicated: Yes
- First listed by seller: October 20, 2026
A smart ring made of zirconia ceramic. It analyzes sleep phases, breathing, heart-rate variability, and skin temperature. The Oura app presents metrics and recommendations, and one account can be used to switch between a regular Ring 4 and a Ceramic ring.
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