The external form of the machine is the mobile phone type, now more commonly used classification is to be divided into a clamshell mobile phone (single screen, dual-screen), upright type, slide, rotary these types.
Clamshell: clamshell-style phone is the phone is folded, to cover before they can turn to see the main display or buttons, and only one screen, then the phone is called a single-screen flip phone. Dual-screen flip phone, that is flip on another sub-displays, the screen is generally small in general can display time, signal, battery, caller ID and other functions.
Upright: Upright mobile phone means phone screen and keypad in the same plane, mobile phones, flip. Vertical is mainly characterized by cell phone can be directly displayed on the screen to see the content.
Slide: slide-type mobile phones mainly refers to the cell phone can be seen through Withdrawing all of the fuselage. Some models is by sliding under the cover to see the keys; while others are part of the screen through the pull-up to see the keyboard. To some extent, slider-style phone is a clamshell mobile phone an extension of and innovation.
Rotary: Rotary phone mainly refers to the roof to see through the spin button. This phone features can be seen directly to the screen, rotating when necessary buttons to open shelters, it is the vertical flip-type mobile phone handset and integration and innovation.
And the vertical clamshell mobile phone comparison
Clamshell phone features:
Appearance of elegance, generosity, and was considered a sign of high-end models
A larger screen, dual screen can display more
Flip phone tend to be more short
Flip phone keypad lock eliminates the work of
Vertical Phone Features:
Appearance of simple, compact
Content can be seen directly on the screen, for example: calls, SMS, etc.
Overall, vertical flip-type mobile phones and mobile phones each have their own advantages, of course, they also each have their own shortcomings, such as: flip-style cell phones used for some time, due to repeatedly turn over cover, the phone itself will cause certain adverse effects, such as loosening of pumping. The vertical cell phone has its own flaws, that is, must always lock the keyboard, otherwise, and easy in the knowledge of the case of outgoing calls; same time, those upright need to unlock the phone after the lock button can be used, to some extent also virtually increase the workload of mobile phone users.
In short, no matter what type of cell phone do not have absolute advantages and disadvantages, with regard to the type of mobile phones more and more choices is determined based on personal hobby.