- Model
- Oura Ring 4
- Color
- Gold
- Width
- 7.90mm
- Thickness
- 2.88mm
- Weight
- 3.3 to 5.2 grams (depending on Oura Ring size)
- Material
- Non-allergenic titanium on inner & outer surfaces
- Interior
- Seamless titanium interior
- Water Resistance
- Water resistant up to 100m/328 ft
- Battery Life
- 5-8 days of battery life**
- Charging Time
- Typically charges in 20-80 minutes, depending on battery level
- Connectivity
- Bluetooth Low Energy
- Automatic Firmware Updates
- Automatic firmware updates via Oura App
- EMF
- EMF-safe
- Operating System
- iOS, Android
- Special Feature
- Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
