Oura Ring 4 Silver — Size 7 — Specs
- Model: Oura Ring 4
- Color: Silver / Argent
- Size: 7
- Material: Full Titanium
- Finish: Glossy Silver with PVD coating
- Smart Sensing: Yes
- Heart Rate: 24/7 tracking
- HRV: Heart Rate Variability
- Blood Oxygen (SpO₂): Yes
- Temperature Sensor: Yes
- Respiratory Rate: Yes
- Sleep Tracking: Advanced sleep analysis
- Activity Tracking: Yes
- Stress Tracking: Yes
- Readiness Score: Yes
- Cardiovascular Age: Yes
- Cardio Capacity / VO₂ Max: Yes
- Sensors: Red, infrared & green LEDs + digital temperature sensor + accelerometer
- Battery Life: 5–8 days
- Charging Time: Approx. 20–80 minutes
- Water Resistance: 100m / 328 ft
- Connectivity: Bluetooth Low Energy
- Compatibility: iPhone & Android
- Width: 7.9mm
- Thickness: 2.88mm
- Weight: 3.3–5.2g depending on size
- Included: Ring + size-specific charger + USB-C cable
- Oura Membership: Required for full detailed insights and features.
