Why Your Smartwatch Heart Rate Sensor Fails During High-Intensity Intervals
Picture this: you’re in the middle of a killer HIIT session, sweat pouring down, breathing heavy, and suddenly… your smartwatch elects to go silent on your heart rate. That frustrating lag or drop isn’t just annoying—it’s a sign that something’s not quite right with your wearable. I’ve been there, too, countless times, trying to push…









