UNLOCKED: Unlocked is the term used to describe mobile phones that are not tied to a particular service provider in order to be used.
Unlocked phones can be used on the network of any compatible provider with the insertion of a compatible SIM CARD.
What is an unlocked cell phone or smart phone.
An unlocked cell phone is one that is not tied into a certain carrier's network: It will work with more that one service provider.
Most phones are tied- or locked-to a certain cellular carrier, such as Verizon Wireless, T-mobile, AT&T or Sprint.
A Smart Phone:- is a mobile phone built on a mobile operating system,with more advanced cpmpatibility and connectivity than a feature phone.
The Smart Phones combines the functions of a personal digital assistance (PDA), including email functionality, with a mobile phone.. Later models added the functionality of portable media players, low-end compact digital cameras, pocket video cameras and GPS navigation units to form one multi-use device. Mnay modern smartphones also include high-resolution touchscreens and web browsers that display standard web pages as well as mobile optimized sites. High-speed data access is provided by WI-FI, Mobile Broad-band, NFC AND Blue-Tooth.
The mobile operating system (OS) used by smartphone include Google's Android, Apple's iOS, Nokia's Symbian, Black-Berry Ltd's BlackBerry 10. Samsung's Bada, Microsoft's Window's phone. Hewlett-Packard's Web OS and embedded Linux.
