Heart rate calories burned way off

My resting hr this morning was 32. Maybe if I was dying! Worked out this morning, 19 calories burned. Horribly inaccurate tracker. I’ve used Polar strap and Fitbit before, unfortunately Fitbit bands are junk. So now I just have a cheap watch.

Devildogmomx2 about Veryfit for heart rate, v1.93