Sleep Wearable Form Factor
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Oura Oura Ring 4 Size 06 (16.5), Black Smart Ring 4, Size 06 (16,5), Black
Available offers (21)
Current
Size 06 (16.5), Black
re:Store
RUB 30,990.00
Available to order
Features
- Battery life: 5–8 days, depending on Oura 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.
- Measures 7.90 mm wide and 2.88 mm thick; weight is 3.3–5.2 g, depending on Oura Ring size.
- Red and infrared LEDs measure blood oxygen levels; 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.
- Available for iOS and Android; Bluetooth Low Energy connectivity; integrates with more than 40 apps.
- Firmware updates automatically through the Oura app; supports airplane mode.
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4655582
- Size: 06 (16,5)
- Brand: OURA
- Width: 7.90 mm.
- Weight: 3.3–5.2 g, depending on Oura Ring size.
- Material: 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 Oura Ring size and lifestyle.
- Product Type: Smart ring
- Airplane mode: Supports airplane mode.
- Charging Time: Usually 20–80 minutes, depending on battery charge level.
- 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.
- Wireless Connectivity: Bluetooth Low Energy.
- Temperature Measurement: A digital sensor measures temperature trends.
- Blood Oxygen Measurement: Red and infrared LEDs measure blood oxygen levels.
- Mobile platform compatibility: Available for iOS and Android.
- Movement and activity tracking: An accelerometer tracks movement and activity around the clock.
- Heart rate, heart rate variability, and respiratory rate measurement: Green and infrared LEDs alternately measure heart rate, heart rate variability, and respiratory rate around the clock.
- 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
A smart ring with blood oxygen, heart rate, heart rate variability, respiratory rate, temperature trend, movement, and activity measurements. It is compatible with iOS and Android, uses Bluetooth Low Energy, and integrates with more than 40 apps.
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | Oura Ring 4 | OURA 5 | Ring 5 | Ring 5 | Ring 5 | Ring 5 |
| Color |
|
|
|
|
|
|
| Price | RUB 30,990.00 | RUB 65,990.00 | 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 | 06 (16,5) | 07 (17,3) | 09 (19) | 11 (20,6) | 08 (18.2) | 10 (19,8) |
| Model Name | Oura Ring 4 | OURA 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. | Supports airplane mode. | Supports airplane mode. |
| Charging Time | Usually 20–80 minutes, depending on battery charge level. | About 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 battery charge level. | About 80 minutes, depending on the 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. | Integrates with more than 100 apps. |
| Firmware updates | Firmware updates automatically through the Oura app. | 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. | 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. | Bluetooth Low Energy. | ||
| Movement and activity tracking | An accelerometer tracks movement and activity around the clock. | An accelerometer tracks movement and activity around the clock. | An accelerometer tracks movement and activity around the clock. | |||
| Compatibility | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android. | ||
| Manufacturer warranty | Available. | Indicated as available. | Manufacturer warranty is indicated; no term is stated. | |||
| Ingress Protection Rating | IP68 protection against water and dust. | IP68 for water and dust. | IP68 for water and dust. | |||
| Battery runtime per charge | Up to 6–9 days, depending on ring size and usage intensity. | Up to 6–9 days per 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. | |||
| Electromagnetic field safety | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | |||
| Certification | FCC certified. | FCC certified. | FCC certified. | |||
Oura Oura Ring 4 Black
RUB 30,990.00
When this device makes sense
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