yes
correct.
Today almost all smartphones are touch screen so there a lot of options out there. The number one touch screen phone out there is the Apple iPhone. It is only a touch screen, meaning that there is no keypad. A common competitor is the Android phones.
Not all Sony Ericsson mobile phones are smartphones. Their Xperia line is all smartphones, but they have other models that are not smartphones, for instance, the Yendo. It has nice features like a touch screen and borrows its looks from the Xperia X10 mini, but it is not a smartphone.
Yes, touch screen phones did exist in 2005, although they were not as common as they are today. One of the notable models was the HTC Wizard, which featured a touchscreen interface. However, most smartphones at that time primarily relied on physical keyboards and styluses, with touch screens still in the early stages of development. The widespread adoption of touch screen technology in smartphones gained significant momentum after the launch of the iPhone in 2007.
no
touch screen
Usually smart phones have touch screen.
phones which have a good sensor touch and have features to make your work smart
Touch screen phones and regular phones tend to have very similar lifespan. The lifespan of phones depends on how often it is used and how it is taken care of. Touch screen phones do have more complicated techonology involved though.
No they work on alot of phones. Usally touch screen but some touch screen don't have it. So no they don't work on any phones
No, for example the LG Chocolate Touch is a multimedia phone and only requires the 25mb plan for Verizon
The market for smartphones has exploded in recent years. There are many great phones available but Iphones and Android phones generally considered top of the market. However there is a whole new operating system coming out this year called Ubuntu touch and if early reviews are to be believed this is a dynamic and robust operating system for smartphones.