Before buying any Mobile phone follow some steps for good phone.
( 1) Never buy who smart phones that’s Ram less than 2G.
( 2) If you want good camera phone that buys who smartphone that’s camera 8MP or above.
( 3) Buy who smartphone that’s looks, style and design is good.
( 4) If you buy those mobile less than 16GB internal storage then many problems faced you like as hanging and heat.
( 5) Never buy those smartphones who did not come with LED flash because you are faced many problems in the night and buy always OTG device support smartphone.
( 6) Buy who smartphone that comes with good battery mah like as 3000 mah.