How To Make Label/Badge Have Same Size on Any Screen/Device ?
Open the label/badge you want to adjust size > On Design tab, naviagte to Size section > Here, you will see 2 options (as in the screenshot below) > let's select: Change size separately (pixel).
FYI, with the option: Change size separately (pixel), all of your size setups will be saved as Pixel (px), so when you want your label/badge to have the same size on any screen/device (even though whatever your product image's size), let's choose this option!