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One of the differences between cheap and expensive digital calipers is the speed at which you can move the jaws and still get reliable results. I have one of the Aldi ones as well as a very old digimatic whose display is going having been subject to some very strong magnetic fields. The measurements compare very well between them, in the region of a couple of hundredths of a millimetre which is in the region of operator "feel".
freezing77
AlexD
I had a bit of measuring spree with mine to try it out. I was getting some slightly unexpected and inconsistent results. I'm not sure I'd trust it to 0.2mm to be honest.