You’re not missing out on much. I stopped using the ecg feature on the Samsung watches when it gave me an AFib warning and I went to a doctor about it. They hooked me up to an EKG and said I was fine and looked at the chart my watch generated and said the chart there also looked fine. I put on both my apple watch and galaxy watch and was measuring both at the same time and the apple watch gave out either high heart rate (I just got back from a walk) or inconclusive meanwhile the galaxy watch fired off another false AFib warning.