As we know that apple products are to costly that they all are mainly use in professional use .
so for professional use which laptop you should buy according to your need . So firstly we should talk about
MAC BOOK PRO
Firstly if you want to do animation, video editing, photo editing and other things than you should buy MAC PRO.
The question of whether to buy a 13-inch MacBook Air(from £949) or MacBook Pro with Retina display(from £1249) - after the October 2016 event, Apple brought out three new MacBook Pro models, starting at £1, 449 to £1, 949 - however last year’s model can still be bought from the Apple store for £1, 249.
MACBOOK AIR
If you are a developer for apple or window or if you want to do programming in your mac than MAC BOOK AIR is the best product
And also if you are a engineering student than also it is very good laptop for you, and it also a good battery life of almost 12 hours.