Oura Ring 4 Black - Size 10 Smart Ring
Available Options
For the active professional who wants to optimize health without constant screen time, the Oura Ring 4 is your discreet wellness companion. While many fitness trackers focus on daily steps, this smart ring offers a unique perspective: it prioritizes recovery and readiness, helping you understand when to push hard or rest based on your body's signals. The ring's sensors detect subtle changes in heart rate variability overnight, so you wake up knowing if you're primed for a big meeting or need a lighter day.
With a battery that lasts 5-8 days, you can wear it continuously without worrying about daily charging. The hypoallergenic titanium design feels comfortable for all-day wear, and its water resistance up to 100 meters means it handles showers and workouts seamlessly. Integrated with over 40 apps and Alexa compatible, it syncs effortlessly with your routine. Experience personalized insights that adapt to your lifestyle, turning raw data into actionable health habits.
Features
- Tracks sleep, activity, stress, heart health, menstrual cycle, and more
- Battery life of 5-8 days
- Water-resistant up to 328 ft
- Made of hypoallergenic titanium
- Bluetooth Low Energy connectivity
- Integrates with over 40 apps
Product details
General specs
- Brand: Oura
- Model: Ring 4
- Material: Titanium
- Connectivity: Bluetooth
- Charging Method: Magnetic
- OS Compatibility: iOS, Android
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Russia
Available Options
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Black - Size 10 | re:Store | $645.89 | Available | Current |
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Silver - Size 12 | re:Store | $645.89 | Available | View |
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Black - Size 7 | re:Store | $645.89 | Available | View |
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Black - Size 11 | re:Store | $546.50 | Available | View |
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Black - Size 8 | re:Store | $546.50 | Available | View |
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Black - Size 12 | re:Store | $645.89 | Available | View |
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Black - Size 11 | re:Store | $645.89 | Available | View |
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Silver - Size 8 | re:Store | $645.89 | Available | View |
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Silver - Size 11 | re:Store | $645.89 | Available | View |
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Silver - Size 11 | re:Store | $546.50 | Available | View |
Video Reviews
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Oura Ring 4 Black
|
UniJethro SR11M Heart rate monitoring
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Fitness Ring with Heart Rate, Sleep, Step & SpO2 Monitor Silver
|
TrendVibeCN R11M Black Heart Rate Monitor
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Milavan TK20 Rose Gold
|
Smart Ring Silver Sleep monitoring
|
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| Brand | Oura | UniJethro | RIFESI | TrendVibeCN | Milavan | ZBNMY |
| Model | Ring 4 | SR11M | R11M | TK20 | ||
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| Price | $645.89 | $39.99 | $139.00 | $29.79 | $58.99 | $32.94 |
| Seller | re:Store | Amazon | Amazon | Joom | Amazon | Amazon |
| Update | January 9, 2026 | December 6, 2025 | December 9, 2025 | January 9, 2026 | December 9, 2025 | December 9, 2025 |
| Size | 10 | 8 | 6, 7, 8, 9, 10, 11, 12, 13, 14, S, M, L | 8 | 8 | |
| Material | Titanium | Titanium Alloy | Aluminum Alloy, Ceramic, Gold, Metal, Stainless Steel, Titanium, Titanium Alloy | Metal | ||
| Battery Life | 5–8 d | 7 d | 3–5 d, 5–7 d, 7–10 d, 7 d, ≤11 h, 8 h, 7–10 d standby, 15 d standby | 3–5 d | 7–10 d | |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | ||
| Charging Method | Magnetic | Magnetic | Magnetic, Wireless | Magnetic | ||
| OS Compatibility | iOS, Android | iOS, Android | Android, Android 5.0+, Android 5.1+, Android 6+, Android Wear 1.3, Android Wear 2.9, iOS, iOS 8+, iOS 10+, iOS 11+, Wear OS 1.0, Wear OS 3.0 | Android, iOS | Android, iOS | |
| Water Resistance | 100 m | 5ATM | 3ATM, 5ATM, 10ATM, IP67, IP68, IPX8 | IP68 | ||
| Display Type | None | LCD, LED, OLED, None | None | |||
| Bluetooth Version | 5.0, 5.1, 5.2, 5.3, 5.4 | 5.0 | 5.0 | |||