Sleep Wearable Form Factor
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Oura Oura Ring 4 Size 05 (15.7), Silver Smart Ring 4, Silver, size 05 (15.7)
Available offers (21)
Current
Size 05 (15.7), 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 charge level.
- Waterproof up to 100 m/328 ft.
- Hypoallergenic titanium inner and outer surfaces with a seamless titanium inner finish.
- Sensors measure blood oxygen, heart rate, heart rate variability, respiratory rate, temperature trends, movement, and activity; several measurements are taken around the clock.
- Bluetooth Low Energy connectivity; the Oura app is available for iOS and Android.
- Integrates with more than 40 apps and supports metric and imperial units.
- The app supports English, Finnish, Japanese, German, French, Spanish, Italian, Norwegian, Swedish, Czech, Dutch, and Danish; firmware updates automatically through the Oura app.
- Supports airplane mode; FCC certified.
- Minor scratches from normal use are described as normal. Manufacturer warranty is indicated; term not specified.
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4655586
- Size: 05 (15.7)
- Brand: OURA
- Width: 7.90 mm.
- Weight: 3.3–5.2 g, depending on ring size.
- Sensors: 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.
- Materials: Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish.
- Thickness: 2.88 mm.
- Model Name: Oura Ring 4
- Battery Life: 5–8 days, depending on ring size and lifestyle.
- Connectivity: Bluetooth Low Energy.
- 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.
- Charging Time: Usually 20–80 minutes, depending on the battery charge level.
- Normal-use wear: Minor scratches from normal use are described as normal.
- App integrations: Integrates with more than 40 apps.
- Firmware updates: Firmware updates automatically through the Oura app.
- Water Resistance: Waterproof up to 100 m/328 ft.
- Device Compatibility: The Oura app is available for iOS and Android.
- App measurement units: Supports metric and imperial units.
- Manufacturer warranty: Manufacturer warranty is indicated; the term is not specified.
- Electromagnetic field safety: Described as safe for electromagnetic fields.
- 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 in silver, size 05 (15.7), with hypoallergenic titanium on its inner and outer surfaces and a seamless titanium inner finish. It is described as waterproof up to 100 m/328 ft.
Battery life is 5–8 days depending on ring size and lifestyle; charging usually takes 20–80 minutes depending on battery charge level.
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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 75,990.00 | RUB 65,990.00 | 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 | 05 (15.7) | 11 (20,6) | 09 (19) | 11 (20,6) | 10 (19,8) | 08 (18.2) |
| Materials | Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish. | High-performance titanium body with seamless titanium interior finish. | High-performance titanium body with a seamless titanium inner finish. | |||
| Model Name | Oura Ring 4 | Ring 5 | Ring 5 | Ring 5 | Ring 5 | Ring 5 |
| Connectivity | Bluetooth Low Energy. | Bluetooth Low Energy; firmware updates automatically through the Oura app. | Bluetooth Low Energy. | |||
| 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. | |||
| Certification | FCC certified. | FCC certified. | FCC certified. | FCC certified. | ||
| Charging Time | Usually 20–80 minutes, depending on the battery charge level. | 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 battery charge level. |
| 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 | Waterproof up to 100 m/328 ft. | Waterproof up to 100 m/328 ft; IP68 water and dust protection. | Up to 100 m/328 ft. | Up to 100 m/328 ft. | ||
| Manufacturer warranty | Manufacturer warranty is indicated; the term is not specified. | Manufacturer warranty is indicated; no term is stated. | Indicated as available. | Yes; term not specified. | ||
| Electromagnetic field safety | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | |||
| Compatibility | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android; compatible with the Oura app. | Available for iOS and Android; integrates with more than 100 apps. | ||
| Wireless Connectivity | Bluetooth Low Energy. | Bluetooth Low Energy. | Bluetooth Low Energy. | |||
| 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. | Up to 6–9 days per charge, depending on ring size and intensity of use. | |||
Oura Oura Ring 4 Silver
RUB 30,990.00
When this device makes sense
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