Oura Ring 4
Oura Ring 4 is the next-generation smart ring featuring an all-titanium design with recessed sensors for improved comfort. Powered by Smart Sensing technology with an 18-path multi-wavelength PPG subsystem, it delivers research-grade accuracy for continuous health monitoring including sleep, activity, heart rate, HRV, SpO2, and temperature tracking.
Battery Life
8 days
Water Resistance
10 ATM
Weight
3.3g
Oura Ring 4 is the next-generation smart ring featuring an all-titanium design with recessed sensors for improved comfort. Powered by Smart Sensing technology with an 18-path multi-wavelength PPG subsystem, it delivers research-grade accuracy for continuous health monitoring including sleep, activity, heart rate, HRV, SpO2, and temperature tracking.
Key Specifications
- Battery Life
- 8days
- Water Resistance
- 10ATM
- Weight
- 3.3g
- GPS
- No
- Cellular
- No