apple iphone x space grey coating

Hi dear's

i am confused to buy apple iPhone x. which color i should chose.

I like space grey but the only question in my mind that it is after all a coating on the stainless steel bands. whereas other hand pure stainless steal. but can be scratched easily.

i just want to ask how strong the coating is on space grey iPhone x?

is that be scratched for a daily cleaning with a soft cloth?

please its very important for me that i can order one.

please notify me on my email for the answer as well

i really appreciate

regards