Sleep Wearable Form Factor
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Oura Oura Ring 4 Size 13 (22.2), Matte Silver Smart Ring, Matte Silver, Size 13 (22.2)
Available offers (21)
Current
Size 13 (22.2), Matte Silver
re:Store
RUB 36,990.00
Available to order
Features
- Battery runtime: 5–8 days, depending on ring size and lifestyle.
- Charging time: usually 20–80 minutes, depending on battery charge level.
- Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish.
- Water-resistant up to 100 m / 328 ft.
- Width: 7.90 mm; thickness: 2.88 mm.
- Weight: 3.3–5.2 g, depending on ring size.
- Red and infrared LEDs measure blood oxygen levels; green and infrared LEDs alternately measure heart rate, heart rate variability, and breathing rate around the clock.
- Digital sensor measures temperature trends; accelerometer tracks movement and activity around the clock.
- Bluetooth Low Energy; Oura app available for iOS and Android; integrates with more than 40 apps.
- Supports metric and imperial units, automatic firmware updates through the Oura app, and airplane mode.
- FCC certified; described as safe for electromagnetic fields. Minor scratches from normal use are described as normal.
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4659140
- Size: 13 (22,2)
- 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
- Product Type: Smart ring
- Airplane mode: Supports airplane mode.
- Charging Time: Usually 20–80 minutes, depending on battery charge level.
- Battery Runtime: 5–8 days, depending on ring size and lifestyle.
- App integrations: Integrates with more than 40 apps.
- Firmware updates: Firmware updates automatically through the Oura app.
- Water Resistance: Water-resistant up to 100 m / 328 ft.
- FCC certification: FCC certified.
- Measurement Units: Supports metric and imperial units.
- Wireless connection: Bluetooth Low Energy.
- Normal-use scratching: Minor scratches from normal use are described as normal.
- Temperature Measurement: A digital sensor measures temperature trends.
- Blood Oxygen Measurement: Red and infrared LEDs measure blood oxygen levels.
- Mobile App Compatibility: The Oura app is available for iOS and Android.
- Electromagnetic field safety: Described as safe for electromagnetic fields.
- Movement and activity tracking: An accelerometer tracks movement and activity around the clock.
- Heart and breathing measurements: Green and infrared LEDs alternately measure heart rate, heart rate variability, and breathing 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 with hypoallergenic titanium on the inner and outer surfaces and a seamless titanium inner finish. It measures blood oxygen, heart rate, heart rate variability, breathing rate, temperature trends, movement, and activity. Battery runtime is 5–8 days, depending on ring size and lifestyle.
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| Brand | Oura | Oura | Oura | Oura | Oura | Oura |
| Model | Oura Ring 4 | Ring 5 | Ring 5 | OURA 5 | Ring 5 | Ring 5 |
| Color |
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| Price | RUB 36,990.00 | 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 | 13 (22,2) | 09 (19) | 11 (20,6) | 07 (17,3) | 11 (20,6) | 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 | OURA 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. | |
| Charging Time | Usually 20–80 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. | 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. | 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 | Water-resistant 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. | ||
| Measurement Units | Supports metric and imperial units. | Supports metric and imperial units. | Supports metric and imperial units. | |||
| Electromagnetic field safety | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | |||
| 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; compatible with the Oura app. | ||
| Manufacturer warranty | Indicated as available. | Manufacturer warranty is indicated; no term is stated. | Available. | Yes; term not specified. | ||
| Wireless Connectivity | Bluetooth Low Energy. | Bluetooth Low Energy. | Bluetooth Low Energy. | |||
| Ingress Protection Rating | IP68 for water and dust. | IP68 protection against water and dust. | IP68 for water and dust. | |||
| Certification | FCC certified. | FCC certified. | FCC certified. | |||
Oura Oura Ring 4 Matte silver
RUB 36,990.00
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