Sleep Wearable Form Factor
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Oura Oura Ring 4 Size 10 (19.8), Silver Smart Ring, size 10 (19.8), Silver
Available offers (21)
Current
Size 10 (19.8), Silver
re:Store
RUB 30,990.00
Available to order
Features
- Battery life per charge: 5–8 days, depending on ring size and lifestyle
- Charging time: usually 20–80 minutes, depending on battery charge level
- Waterproof to 100 m/328 ft
- Width: 7.90 mm; thickness: 2.88 mm
- Weight: 3.3–5.2 g, depending on ring size
- Supports flight mode
General specs
- Brand: Oura
- Model: Oura Ring 4
- Seller: re:Store
- ID: 4653522
- Size: 10 (19.8)
- 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 breathing rate; a digital sensor measures temperature trends; an accelerometer tracks movement and activity
- Materials: Hypoallergenic titanium on the inner and outer surfaces; seamless titanium inner finish
- Thickness: 2.88 mm
- Model Name: Oura Ring 4
- Flight Mode: Supports flight mode
- Connectivity: Bluetooth Low Energy
- Product Type: Smart ring
- Certification: FCC certified
- 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 to 100 m/328 ft
- App Compatibility: Oura app available for iOS and Android
- Normal-use scratches: Minor scratches from normal use are described as normal
- App measurement units: Supports metric and imperial units
- Battery Life per Charge: 5–8 days, depending on ring size and lifestyle
- 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
A silver smart ring in size 10 (19.8). Red and infrared LEDs measure blood oxygen; green and infrared LEDs alternately measure heart rate, heart rate variability and breathing rate. A digital sensor measures temperature trends, and an accelerometer tracks movement and activity.
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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 30,990.00 | RUB 75,990.00 | RUB 75,990.00 | RUB 65,990.00 | 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 | 10 (19.8) | 11 (20,6) | 09 (19) | 07 (17,3) | 08 (18.2) | 11 (20,6) |
| 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 |
| Certification | FCC certified | FCC certified. | FCC certified. | FCC certified. | ||
| 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 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 | 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 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. | ||
| Battery Life per Charge | 5–8 days, depending on ring size and lifestyle | Up to 6–9 days on one charge, depending on ring size and usage intensity. | Up to 6–9 days per charge, depending on ring size and usage intensity. | |||
| Electromagnetic field safety | Described as safe for electromagnetic fields | Described as safe for electromagnetic fields. | Described as safe for electromagnetic fields. | |||
| Airplane mode | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | Supports airplane mode. | ||
| 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 | Manufacturer warranty is indicated; no term is stated. | Indicated as available. | 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. | |||
Oura Oura Ring 4 Silver
RUB 30,990.00
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