Now i, ll try to give some tips and points to remember before buying a new mobile phone -
Mobile should have minimum 1 Gigabytes of RAM for smooth multitasking between several Apps.
Minimum Internal memory should be 8 Gigabytes, so, you should never be lack of memory without a memory card.
If you want to buy a smartphone then go for Snapdragon powered chips which are better processors for smooth functioning.
Go for LCD(Liquid Crystal Display) rather than TFT displays for better picture quality and resolution.
For the persons who don’t know how to use a smartphone then go for android operating system because it is user friendly means its User Interface is easy to use.
Camera quality is based on your budget and requirements.
As india is becoming digital so buy a 4G phone rather than 2G for better internet experience. BE SMART - BUY SMART!