So I'm looking at the Mate 10 Pro, back where I was before moving back to Lebanon I used to buy ALL my electronics second hand.
I'm thinking of doing the same here, checked olx and found some deals but thinking too good to be true, right. Anyone have any ideas on what to look out for or any beneficial info that I don't end up buying a phone that isn't working properly or is a fake.

I'm looking at these:
https://olxliban.com/en/ad/mate-10-pro-used-2-days-only-ID72ndd.html
Pictures seem real and he is selling a lot of other phones so this makes me think a lot of different things, good and bad.

https://olxliban.com/en/ad/huawei-mate-10-pro-128-gb-6-gega-ram-used-1-week-ID72lgb.html
Pictures are not real but selling other normal household stuff.

https://olxliban.com/en/ad/mate-10-pro-full-package-128-gb-colorblack-ID71KPY.html
Real pictures and really good description. But he says he wants to buy a PS4 but he's selling one?

https://olxliban.com/en/ad/mate-10-pro-full-package-ID71Cz3.html
Real pictures, selling other misc stuff and phones.

Any help is appreciated.