ASUS - ZenTalk

Can my phone and laptop get warranty service if it is malfunction while i'm travelling abroad? Any necessary proofs? Like invoice? 

I understand this is a light laptop. But i'm thinking having some fun time while not working. Is it capable of running games two point hospital?

Does this model support eSIM? Will there be a problem if i use it abroad?

Need a model that is lightweight but long battery life, mainly paper words.