Fitbit and Whoop Outperform Oura Ring 5 in REM Sleep Tracking

The Oura Ring 5 represents a blend of refined design and targeted health tracking, but its performance varies across key metrics. In a detailed analysis by The Quantified Scientist, the device’s standout feature—nighttime heart rate and HRV tracking—is highlighted for its exceptional accuracy, rivaling ECG chest straps. However, the review also uncovers notable shortcomings, including […]
The post Fitbit and Whoop Outperform Oura Ring 5 in REM Sleep Tracking appeared fir