Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
Oura Ring 4 Ceramic dark blue (Dark Night) Dark blue (Dark Night), size 11 (20.6)
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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
- Dark blue (Dark Night), size 11 (20.6)
- Zirconia ceramic outer material
- Analyzes sleep phases, breathing, heart-rate variability, and skin temperature
- Health metrics are displayed in the Oura app
- Seller states that the Ceramic has the same sensors, battery, and measurement accuracy as the standard Oura Ring 4; no battery runtime is given
- Seller states that health indicators are analyzed around the clock
General specs
- Brand: Oura
- Model: Ring 4 Ceramic
- Seller: re:Store
- ID: 4655552
- Size: 11 (20.6)
- Brand: OURA
- Model Name: Ring 4 Ceramic
- Product Type: smart ring
- Outer Material: Zirconia ceramic.
- Health metrics display: The Oura app displays health metrics.
- Material durability claims: The seller description states that the zirconia ceramic is scratch-resistant, does not fade over time, and retains its color and gloss after active wear.
- Tracked sleep and health measures: Sleep phases, breathing, heart-rate variability, and skin temperature are analyzed.
- Health-indicator analysis coverage: The seller description states that health indicators are analyzed around the clock.
- Comparison with standard Oura Ring 4: The seller description states that Ceramic has the same sensors, battery, and measurement accuracy as the standard Oura Ring 4; it gives no battery runtime.
- First listed by seller: October 20, 2026
A smart ring with a zirconia ceramic exterior in Dark blue (Dark Night), size 11 (20.6). It analyzes sleep phases, breathing, heart-rate variability, and skin temperature, with health metrics displayed in the Oura app. The seller states that Ceramic is scratch-resistant, does not fade over time, and retains its color and gloss after active wear. The seller also states that it matches the standard Oura Ring 4 in sensors, battery, and measurement accuracy, without giving a battery runtime.
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