Sleep Wearable Form Factor
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Oura Oura Ring 4 Matte silver
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Last known price: RUB 30,990.00 (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
- Battery runtime per charge: 5–8 days, depending on ring size and lifestyle
- Charging time: usually 20–80 minutes, depending on battery charge level
- Width: 7.90 mm; thickness: 2.88 mm
- Weight: 3.3–5.2 g, depending on ring size
- Water resistance: up to 100 m / 328 ft
- Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish
- Red and infrared LEDs measure blood oxygen; green and infrared LEDs alternately measure heart rate, heart-rate variability, and breathing rate around the clock
- A digital sensor measures temperature trends; an accelerometer tracks movement and activity around the clock
- Bluetooth Low Energy connectivity; supports iOS and Android
- Airplane mode supported; automatic firmware updates through the Oura app
- Integrates with more than 40 apps
- Manufacturer warranty: Yes
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4653528
- Size: 07 (17.3)
- Brand: OURA
- Width: 7.90 mm
- Weight: 3.3–5.2 g, depending on ring size
- Materials: Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish
- Thickness: 2.88 mm
- Model Name: Oura Ring 4
- Connectivity: Bluetooth Low Energy
- Product Type: Smart ring
- Airplane mode: Supported
- Charging Time: Usually 20–80 minutes, depending on battery charge level
- App integrations: Integrates with more than 40 apps
- Firmware updates: Automatic updates through the Oura app
- Water Resistance: Up to 100 m / 328 ft
- Manufacturer warranty: Yes
- Sensors and measurements: Red and infrared LEDs measure blood oxygen; green and infrared LEDs alternately measure heart rate, heart-rate variability, and breathing rate around the clock; a digital sensor measures temperature trends; an accelerometer tracks movement and activity around the clock
- Battery runtime per charge: 5–8 days, depending on ring size and lifestyle
- Supported mobile platforms: iOS and Android
- First listed by seller: October 20, 2026
Smart ring with hypoallergenic titanium on its inner and outer surfaces and a seamless titanium inner finish. It measures blood oxygen, heart rate, heart-rate variability, breathing rate, and temperature trends, and tracks movement and activity around the clock. Battery runtime per charge is 5–8 days, depending on ring size and lifestyle.
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