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Oura Oura Ring 4 Size 15 (23.9), Matte Black Smart Ring, Matte Black, Size 15 (23.9)
Available offers (21)
Current
Size 15 (23.9), Matte Black
re:Store
RUB 36,990.00
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.
- Width: 7.90 mm; thickness: 2.88 mm; weight: 3.3–5.2 g, depending on ring size.
- Water resistance rating: up to 100 m/328 ft.
- Sensors measure blood oxygen level, heart rate, heart-rate variability, respiration rate and temperature trends; movement and activity tracking is provided around the clock.
- Available for iOS and Android; Bluetooth Low Energy; integrates with more than 40 apps.
- Hypoallergenic titanium on inner and outer surfaces, with a seamless titanium interior finish.
- Manufacturer warranty indicated; term not specified.
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4659132
- Size: 15 (23,9)
- 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 interior finish.
- Thickness: 2.88 mm.
- Model Name: Oura Ring 4
- Battery Life: 5–8 days, depending on ring size and lifestyle.
- Product Type: Smart ring
- Charging Time: Usually 20–80 minutes, depending on battery charge level.
- Compatibility: Available for iOS and Android.
- Product family: Oura Ring
- App integrations: Integrates with more than 40 apps.
- Wireless connection: Bluetooth Low Energy.
- Warranty availability: Manufacturer warranty indicated; term not specified.
- Temperature Measurement: A digital sensor measures temperature trends.
- Water Resistance Rating: Up to 100 m/328 ft.
- Movement and activity tracking: An accelerometer tracks movement and activity around the clock.
- Blood oxygen measurement sensors: Red and infrared LEDs measure blood oxygen level.
- Heart rate, heart-rate variability, and respiration tracking: Green and infrared LEDs alternately measure heart rate, heart-rate variability, and respiration 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 36,990.00
Last price update: 10/20/26
Available to order
Shipping options
Delivery to 
Russia
Russia
Available
Smart ring in matte black, size 15 (23.9). Red and infrared LEDs measure blood oxygen level; green and infrared LEDs alternately measure heart rate, heart-rate variability and respiration rate around the clock. A digital sensor measures temperature trends, and an accelerometer tracks movement and activity around the clock.
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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 |
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| Price | RUB 36,990.00 | RUB 65,990.00 | RUB 75,990.00 | RUB 75,990.00 | RUB 65,990.00 | RUB 75,990.00 |
| 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 | 15 (23,9) | 07 (17,3) | 11 (20,6) | 09 (19) | 08 (18.2) | 08 (18,2) |
| Materials | Hypoallergenic titanium on the inner and outer surfaces; seamless titanium interior finish. | High-performance titanium body with a seamless titanium inner finish. | High-performance titanium body with seamless titanium interior finish. | |||
| 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 |
| 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. |
| Compatibility | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android. | Available for iOS and Android. | ||
| 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. | |
| 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. | An accelerometer tracks movement and activity around the clock. | ||
| Airplane mode | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | ||
| 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. | |
| Manufacturer warranty | Available. | Manufacturer warranty is indicated; no term is stated. | Indicated as available. | Yes. | ||
| Battery Life per Charge | Up to 6–9 days per charge, depending on ring size and usage intensity. | Up to 6–9 days on one charge, depending on ring size and usage intensity. | Up to 6–9 days, depending on ring size and usage intensity. | |||
| Ingress Protection Rating | IP68 protection against water and dust. | IP68 for water and dust. | IP68 for water and dust. | |||
| Water Resistance | Waterproof up to 100 m/328 ft; IP68 water and dust protection. | Up to 100 m/328 ft. | Up to 100 m/328 ft. | 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. | ||
Oura Oura Ring 4 Matte black
RUB 36,990.00
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