I’ve tested dozens of smartwatches, but the Oura Ring 4 was first to show me I’m sick
Oura Ring 4: A Game-Changer in Health Monitoring
February 26, 2025
Introduction
In the realm of wearable technology, the Oura Ring 4 stands out as a beacon of innovation, offering unparalleled insights into personal health. Nominally I had a strong immune system—an advantage that often left me skeptical of any signs of illness. However, the Oura Ring 4 has become my reality check, a tool that consistently proves its worth. This wearable has been named ZDNET’s 2024 Product of the Year, a testament to its reliability and effectiveness in health monitoring.

Exceeding Expectations with Daily Use
In my routine of testing various smartwatches, I often wear multiple devices simultaneously. One day, I wore two smartwatches—a combination of an Apple Watch Ultra 2
on one wrist, and a Garmin Fenix 8
on the other—along with the Oura Ring 4 on my left ring finger. The Oura Ring, through its smartphone app’s Symptom Radar, quickly picked up on subtle changes that the other devices missed.
The symptom radar stated that there were major signs of something straining my body, with my biometrics under strain. My body temperature and respiratory rate were slightly elevated, and my heart rate variability decreased. It was obvious that something was going on as I went from no signs to major signs in one day. At this point, I only coughed about once every couple of hours and didn’t think there was anything serious going on.
A Mandatory Intervention
The following evening, my biometric indicators shifted, and my resting heart rate surged. I developed a full-body soreness and began coughing more frequently. Recognizing the urgency, I consulted a doctor who prescribed Tamiflu, an antiviral medication, to combat the virus. Timely detection is crucial, as Tamiflu is most effective if taken within 48 hours of symptom onset, underscoring the importance of early interception facilitated by the Oura Ring 4.
Comparative Analysis
When juxtaposed, the Apple Watch Ultra 2
and Garmin
devices exhibited disparities. Initially, both devices presented normal vitals, but the Apple Watch would later signal anomalies, including elevated heart and respiratory rates, although it didn’t flag abnormal wrist temperature, commonly an early illness marker. Meanwhile, Garmin’s measurements indicated increased stress but lacked direct illness warnings, Howewer, the Garmin app did not offer clear indicators that anything was amiss.
The Oura Ring 4 continues to prove its value with strong performance, complemented by a well-designed smartphone app. The app’s capabilities make it an essential tool for tracking health metrics, though deeper integration with smartwatch platforms like Garmin, Coros, Polar, or Suunto would provide a more comprehensive view of workout impact on overall health.
For now, the Oura app stands out in its ability to incorporate workout data effectively, making it my go-to resource for assessing health and fitness.
Conclusion
The Oura Ring 4 epitomizes excellence in wearable health technology. As a tool for everyday use, it consistently alerts users of potential health issues, enhancing timely medical intervention. As we move forward, seamless integration with other health monitoring devices could expedite a holistic health monitoring experience. Thanks to its robust abilities and user-friendly design, the Oura Ring 4 solidifies its role as a vital tool in promoting health and wellness.
