Can zio patch detect heart attack?

Please do not rely on patches or home monitors if you suspect heart trouble. I once ignored chest pressure thinking it was just acidity, and it turned out to be a major blockage. If you feel any pain or tightness, immediately go to a hospital with a proper cardiac emergency unit.

My son had to wear a Zio patch because of some irregular heartbeat issues. It is basically a continuous ECG monitor that records rhythm disturbances like arrhythmia, but it is not meant to diagnose an acute heart attack. It is very useful for long-term monitoring though.

I wore a Zio patch for two weeks to investigate some palpitations I was having. From what my cardiologist explained, it is designed to catch abnormal heart rhythms like AFib, not to detect a heart attack. It was very lightweight and easy to wear during daily chores.

I am a bit confused because my grandfather's doctor suggested this patch. Does it mean it won't help if he has a sudden cardiac emergency while wearing it? Should we keep another emergency monitor at home?