First of all, please forgive me for my English. I am not good with grammars. Do correct me if you typed anything wrong.
As titled, I am planning to get an iPhone for my wife for coming birthday. It's her dream to get an iPhone. (We both are XiaoMi fans, since it's not lag, big RAM and GB and this and that. Actually my wife was Samsung fans. But I forced her to get XiaoMi Note 4 instead 3 years back because worth of price and quite good spec. HahHAHAHAH!)

So, may I know which iPhone overall is good for beginners. I wish to get a nice camera (she likes to take photo), and big screen (small screen will kill her. hahaha!).

And my budget was around 3-4k maybe? Or any XiaoMi model? (Maybe I am still it's die hard fans. Other brand than XiaoMi I am not really convinced.......yet. I am a mild gamer)