Sleep Wearable Form Factor
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Oura Oura Ring 4 Size 12 (21.4), Silver Smart Ring, Size 12 (21.4), Silver
Available offers (21)
Current
Size 12 (21.4), Silver
re:Store
RUB 30,990.00
Available to order
Features
- Battery life: 5–8 days, depending on ring size and lifestyle.
- Charging time: usually 20–80 minutes, depending on battery level.
- Water resistance: up to 100 m / 328 ft.
- Tracks heart rate, heart rate variability, respiratory rate, blood oxygen, temperature trends, movement, and activity; heart rate, heart rate variability, respiratory rate, and activity are measured or tracked around the clock as specified.
- Compatible with iOS and Android; integrates with more than 40 apps.
- Oura Membership provides personalized recommendations and access to Oura Advisor.
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4654526
- Size: Size 12 (21.4)
- Brand: OURA
- Model Name: Oura Ring 4
- Ring width: 7.90 mm.
- Ring weight: 3.3–5.2 g, depending on ring size.
- Product Type: Smart ring
- Airplane mode: Supports airplane mode.
- APP Languages: English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish.
- Certification: FCC certified.
- Ring materials: Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish.
- Ring thickness: 2.88 mm.
- App integrations: Integrates with more than 40 apps.
- Firmware updates: Firmware updates automatically through the Oura app.
- Water Resistance: Up to 100 m / 328 ft.
- Ring Battery Life: 5–8 days, depending on ring size and lifestyle.
- Ring Charging Time: Usually 20–80 minutes, depending on battery level.
- Membership features: Oura Membership provides personalized recommendations and access to Oura Advisor.
- App measurement units: Supports metric and imperial units.
- Wireless Connectivity: Bluetooth Low Energy.
- Sensors and measurements: Red and infrared LEDs measure blood oxygen; green and infrared LEDs alternately measure heart rate, heart rate variability, and respiratory rate around the clock; a digital sensor measures temperature trends; an accelerometer tracks movement and activity around the clock.
- Electromagnetic field safety: Described as safe for electromagnetic fields.
- Compatible mobile operating systems: iOS and Android.
- First listed by seller: October 20, 2026
If you are interested in more details, you can find full information on the seller's page.
RUB 30,990.00
Last price update: 10/20/26
Available to order
Shipping options
Delivery to 
Russia
Russia
Available
Smart ring with hypoallergenic titanium inner and outer surfaces and a seamless titanium inner finish. It measures 7.90 mm wide, is 2.88 mm thick, and weighs 3.3–5.2 g depending on ring size.
- Bluetooth Low Energy, automatic firmware updates through the Oura app, and airplane mode.
- FCC certified; described as safe for electromagnetic fields.
- The app supports metric and imperial units and English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish.
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | Oura Ring 4 | Ring 5 | Ring 5 | Ring 5 | Ring 5 | Ring 5 |
| Color |
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| Price | RUB 30,990.00 | RUB 75,990.00 | RUB 75,990.00 | RUB 65,990.00 | RUB 75,990.00 | RUB 65,990.00 |
| Seller | re:Store | re:Store | re:Store | re:Store | re:Store | re:Store |
| Update | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 | Oct 26, 2026 |
| Size | Size 12 (21.4) | 11 (20,6) | 09 (19) | 10 (19,8) | 11 (20,6) | 10 (19,8) |
| Model Name | Oura Ring 4 | Ring 5 | Ring 5 | Ring 5 | Ring 5 | Ring 5 |
| Product Type | Smart ring | Smart ring | Smart ring | Smart ring | Smart ring | Smart ring |
| Airplane mode | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | ||
| APP Languages | English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish. | Arabic, Chinese (Traditional and Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Spanish, and Swedish. | Arabic, Chinese (traditional and simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Spanish, and Swedish. | Arabic, Traditional and Simplified Chinese, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Spanish, and Swedish. | ||
| Certification | FCC certified. | FCC certified. | FCC certified. | FCC certified. | ||
| App integrations | Integrates with more than 40 apps. | Integrates with more than 100 apps. | Integrates with more than 100 apps. | Integrates with more than 100 apps. | Integrates with more than 100 apps. | |
| Firmware updates | Firmware updates automatically through the Oura app. | Automatic firmware updates through the Oura app. | Automatic firmware updates through the Oura app. | Firmware updates automatically through the Oura app. | Firmware updates automatically through the Oura app. | |
| Water Resistance | Up to 100 m / 328 ft. | Waterproof up to 100 m/328 ft; IP68 water and dust protection. | Up to 100 m/328 ft. | Water-resistant up to 100 m/328 ft; IP68-rated for water and dust. | ||
| Wireless Connectivity | Bluetooth Low Energy. | Bluetooth Low Energy. | Bluetooth Low Energy. | |||
| Electromagnetic field safety | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | ||
| Charging Time | About 80 minutes, depending on battery charge level. | About 80 minutes, depending on battery charge level. | About 80 minutes, depending on the battery charge level. | About 80 minutes, depending on the battery charge level. | About 80 minutes, depending on the battery charge level. | |
| Compatibility | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android; integrates with more than 100 apps. | Available for iOS and Android; compatible with the Oura app. | Available for iOS and Android. | |
| Manufacturer warranty | Manufacturer warranty is indicated; no term is stated. | Indicated as available. | Yes; term not specified. | |||
| Measurement Units | Supports metric and imperial units. | Supports metric and imperial units. | Supports metric and imperial units. | |||
| Battery runtime per charge | Up to 6–9 days, depending on ring size and usage intensity. | Up to 6–9 days on one charge, depending on ring size and intensity of use. | One charge provides up to 6–9 days of battery life, depending on ring size and intensity of use. | |||
| Connectivity | Bluetooth Low Energy. | Bluetooth Low Energy; firmware updates automatically through the Oura app. | Bluetooth Low Energy. | |||
Oura Oura Ring 4 Silver
RUB 30,990.00
When this device makes sense
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