What scale is more accurate?

hiyomi

So I have been weighing myself at the gym and it tells me I weigh about 267, I also went to the doctor and got the same reading. Both scales were those manual scales where you have to move the little weight back and forth so it stays in the middle. Meanwhile my digital scale at home keeps saying 269-270. Sooo which should I believe? >.< They are constant readings also, gym always says the same weight, then the scale at home says the same weight. I would like to measure my inches lost, but I can't find my measuring tape -.-' Either way, what scale is the more accurate reading?