I have a question considering portion size and calories. MFP lists calories for two squares of a large Hershey’s candy bar. They also gave a weight. However, the weight was “reasonably” accurate but for three squares. So which one should I choose?

PS It looks like now my watch is reporting the correct bpm of my heart rate. What is with this thing? First it did not reset itself by the next morning, and now it does. The same with the heart monitor which is now working. Before, I could take it off and see the number of bpm still there, even changing from time to time. Well, enough about my watch.