I bought many smartphones . I give a tip of you to buying a best smartphones. the tips are the following;-
1) first of all select the range in which price you mobile owned .
2) download the smartprix application from play store . in which you compare the mobile phones specifications and prices .
3) in which see the processor of mobile.
4) see the style and looking of the phone .
5) see the ram and its internal memory .
6) you also see the reviews of the smartphones . those reviews are good you are select it .
7) in our generation the camera of the smartphone is very important . then looks the phone camera quality is better or not.
THEN YOU SELECT YOUR SMARTPHONE