Hello friend, now a days all are having their own mobile phones because of the trends all are necessary to use the mobile phone, some points which I think it is necessary to buy a mobile phone are
mobile phone are having good color, size, quality and matter brightness.
the range of the mobile may be good or up to the level of requirement.
it give enough storage capacity may be 2GB or 4GB.
very good battery capacity.
when you buy a phone than you should check the speaker is having sound or not.
phone having good operating system which is helpful to the user.
phone having number of options in its use.
which cant effect the eye sight.
phone having good data usage and getting good offers.
so these are the requirements as well as having trendy mobile in use may be must.