I know the chance of getting a new unit Iphone XS MAX is  SUPERRRRRR low, but I still wanna ask.
Anyone has a local new unit of Iphone XS Max , will pay for what I get.

Or

Trying to buy a used unit, BUT the phone must not been modified/repair or anything.

Any tips to check the phone before I purchase?
Saw many shops sell Iphone XS Max but didn't there can be trust or not.
Or you guys have any recommended shop?

Thx ~