Selection depends on the cellular phone set criteria. How to choose exactly what you need to? The answer to this and other questions ready.
To start to define a class. Here, the range is divided into two categories:
Already familiar to most of us the unit. The main difference will be the manufacturer, the shape and color of the body and some functions.
This is more than just a mobile phone. The smartphone has its own operating system. This significantly expands the list of installed programs, additional functions on almost any taste. Smartphones today are very popular choice here, wider.
If the device is intended for children, oran elderly person, you should pay attention to simple models of mobile phones with large keys, a good backlit screen and limited functionality.
Once the selection is made with a device class, proceed to the choice of housing. There also exist several options:
- Bar. This is a classic among the mobile phones. Different reliability due to no moving parts.
- Slider. The casing has two parts, one of which extends upwards. Have compact size, the screen is quite large compared with monoblock.
- Clamshell. The peak of his popularity has survived and gradually receding into the past. However, it has a range of users, so most manufacturers and currently leave "clamshell" type models in its lineup.
Keyboard or sensor?
The most important thing - your convenience. Each of the proposed control system has its fans.
The touch screen is more space,Control takes place with the fingers, as well as via control buttons (generally from 1 to 3, and may be absent altogether in modern models). It should be noted that the touch screen requires more energy, due to this battery will run out quickly. On a cold worse sensor can respond to touch. Also, the touch screen needs a protective film. It is recommended to purchase and stick immediately upon purchase, in order to keep the screen from scratches.
Touchscreens in turn, are divided into:
Capacitive - a modern and comfortable style screen. It reacts only to touch your fingers or a special stylus (not the usual approach).
Resistive - responds to touch any solid object (included are a stylus, but you can also use a pencil).
For good image clarity and resolution, and it is also important screen type.
High screen resolution ensures great image clarity.
The quality of the image depends on the type of screen. They are many, here are some of the most popular:
TFT, TFD - different enough great clarity and contrast of the image, good speed screen. Disadvantage - the high power consumption.
IPS and S-IPS - one of the varieties of TFT-screen. There is increased viewing angle and speed of reaction. They have a perfect black color and good color reproduction.
OLED - high contrast, brightness and frugality in power consumption. Such displays are much thinner than the rest. The cost of the smartphone with the screen is quite high.
AMOLED - a more advanced OLED technology. Accordingly, it is more expensive.
The operating system of the smartphone.
The most popular today are the operating systems such as:
IOS - the operating system exclusively from Apple products (iPhone).
Android - the OS is very popular and smart phones based on it produce the majority of manufacturers. Updated frequently.
Windows Phone - a familiar interface than Windows. Slightly fewer opportunities to install programs and applications.
BlackBerry - the operating system of the same name is used only in smartphones. Accordingly, less common than the previous.
There are also some other operating systems such as Symbian, Samsung Bada and others.
Smartphone always consumes much moreenergy than a mobile phone. Autonomy smartphone is usually about a day. Therefore, the battery should have a higher capacity. The higher it is, the longer you will be able to use your smartphone without the "charge".
The type and processor speed, number of cores depends on productivity and performance of the smartphone. The higher these numbers, the more powerful your device.
The most common processors -single-core, but the number of more powerful smartphones with 2 or even a 4-core processors over time is steadily increasing. If you plan to watch high-definition video and perform work in multiple applications simultaneously, you should consider a model with two or more cores. With a clock frequency of 800 MHz, and possibly even above 1 GHz.
Also, depending on your needs, select camera resolution. In smartphones, it is usually higher, respectively,picture quality make the device increases. It should be noted that the vast majority of smartphones at the moment can not replace digital camera.