Considerations while selection of Mobile phone or smartphones

Nowdays its trend to have latest handset.
Before purchase of any mobile phone its very necessary to have basic requirement with you what you will prefer in the phone:
For that, before purchasing mobile phone you need to have a bunch of question :

1. What type of phone i should have : simple, feature phone, smart phone, applicability / use of the phone,
2. Do you prefer branded phone, which brand you will prefer ?
3. Do you need camera, video, FM Radio ?
4. How much speed will you required ?
5. what capacity of battery your handset should have ?
6. Is there any service centre nearby in case of any service required ?
7. What capacity of storage of your data in the handset.

All above questions you will get an idea which handset you should purchase

1. Display :
2. RAM : Read Access Memory -Speed of your handset is depends upon the RAM.
3. ROM : Read only Memory - Data storage capacity in your handset
4. Processor:
5. Camera :
6. Battery : How long your handset will run after charging. Higher capacity of Battery is considered to have long run of your handset after charging.
7. Service availability
8. Version