Apple Watch Series 12 vs Galaxy Watch 9: Which Tracks Heart and Sleep Better?
Apple Watch Series 12 and Samsung Galaxy Watch 9 compete closely on health features, with no single winner, as each offers distinct strengths in heart and sleep tracking. Apple's Series 12 introduces a redesigned Health Sensing System with heart-rate readings every 5 seconds, 60 times more frequent than before, plus HRV measurements every 5 minutes. It adds a readiness feature estimating recovery, while Samsung counters with Energy Score and Heart Health Score. Both watches offer ECG, heart-rate alerts, and sleep tracking with apnoea detection. Samsung uniquely provides blood-pressure monitoring requiring cuff calibration, while Apple's hypertension notifications are delayed in India pending regulatory approval.