Apple Watch Ultra 2 Leads Heart Rate Accuracy Tests, Outperforming Rivals

Recent independent testing by data scientist Rob ter Horst reveals the Apple Watch Ultra 2 outperforms many specialist fitness trackers, including the medical-grade Whoop MG and devices from Garmin and Samsung, in heart rate accuracy across various workouts. The Apple Watch Ultra 2 also excels in sleep tracking accuracy, surpassing competitors like the Oura Gen 4 ring. Beyond fitness, the Apple Watch has proven instrumental in life-saving health detections, such as diagnosing a brain tumor following alerts about an irregular heartbeat, highlighting its growing role as a comprehensive health companion. However, concerns about data privacy persist, with a recent report showing that while many smartwatch manufacturers share user data with third parties, Apple maintains a stricter policy, only sharing data with user permission. Additionally, Apple has recently patented a sophisticated dual-sensor system designed to improve wearable health monitoring accuracy by filtering out environmental noise, which will enhance the reliability of biometric data across its devices including the Apple Watch, AirPods, and potentially future smartglasses. This combination of superior accuracy, health utility, privacy considerations, and technological innovation positions Apple Watch as a leader in the wearable health technology market.