How to choose a mobile? ( Part 1)

One of the most difficult choices nowadays is to find a suitable mobile, in old days there was just a few countable devices so you are limited by a certain models in which you may not find all desired features,

But nowadays the situation became more complicated by terrible number of devices that make you so confused to know the difference between them.

There is a quote that said "Choosing a wife is easier than choosing a mobile" ( actually I'm the person who wrote that).