I guess? I don't know the exact thickness either, but I held it up sideways behind my Samsung S10 and it was maybe a millimeter or so thicker, so it's not huge.

I guess? I don't know the exact thickness either, but I held it up sideways behind my Samsung S10 and it was maybe a millimeter or so thicker, so it's not huge. Like 9mm-1cm. I have never thought much about the thickness of it