Damn near every digital scale made that isn’t for very high end laboratory work is going to be made in China these days. I have a couple of laboratory grade ohaus digitals that are also made in China. Regardless of where they are being made, I have found that most are very accurate, even the cheap food type scales you can buy on Amazon. Almost more important that the scales themselves is a good set of calibration weights. If you don’t have highly accurate calibration weights, who knows what your scale is throwing. Some think that simply hitting the tare button on the scale is enough to calibrate.
Correct room temp, most manufacturers insist that you let the scale “warm up” (usually turn it on and let it sit the 5 to 10 min before calibration and use), keeping it away from light sources that emit magnetic interference, when in use keeping it away from vents, fans and other drafty areas is also important.
Many people just turn on a scale and start using it. Theres a right way and wrong way to using one.