Чисто нов Oura Ring 4 Silver, който измерва и следи активност, сън, стрес и много други параметри.

The Oura Ring 4 measures heart rate, heart rate variability (HRV), respiratory rate, blood oxygen levels, and temperature trends using a combination of LED and infrared sensors, along with an accelerometer for movement tracking.

This data is processed to provide scores for sleep, activity, and readiness, alongside other metrics like symptom radar and stress resilience, all calculated from the 18 sensor pathways on the ring.