You are looking to buy smartphone, you are wondering when buying a smartphone. You do not know what to choose between the specifications of how different smartphone, touchscreen capacitive and resistive touch screen how different? The following article will help you understand the common specifications of The smartphone (handset).
Processor
The processor can be considered as the brain of the handset, handling all the tasks and activities on the device. The processor can be an integrated circuit or chip. There are many handset equipped with the 1GHz processor makers such as Samsung processor (Hummingbird, Apple), Qualcomm (Snapdragon) and Texas Instruments (OMAP). 1GHz processor so what?
1GHz processor capable of handling any task system and hardware acceleration of multimedia at higher clock speeds with low power consumption. In addition, the processor also combined with software to decode high-definition video and surf the Web faster and help smoother. When purchasing a handset, you should take the time to test a range of tasks that you will use. If you often watch movies, listen to music, surfing, running more complex applications in a long time, then select the handset has a 1GHz processor. Also, you should also find out more information about processor, such that manufacturing companies, reviews of those who use the handset that you intend to purchase …
RAM
Like a computer, handset also has the ability to run multiple applications simultaneously, depending on the amount of RAM on your computer.You should find out how much memory the information before deciding to buy viCac providers rarely ad RAM on a handset models. The current mid-range handset or previously have about 256MB of RAM, enough to run certain applications without compromising performance. The luxury handset line, such iPhone 4, Samsung Nexus S, equipped with 512MB of RAM, can run multiple applications simultaneously without affecting performance.
256MB RAM enough for those who use the handset for messaging, call and receive calls, surf the web, play some games. With multi-tasking applications, heavier than the minimum required 512MB of RAM.
Monitors
If you intend to buy handset has a relatively large screen, higher resolution for sending or receiving messages, surf the web, watch the screen 2.7 “suits you, but if you want to check email, access sites in common formats (such as on computer), you would need to screen 3.5 “or greater.
Currently, most mobile phone handset and have used conventional LCD screen technology (liquid crystal display) color images features and competitive price. There are two main types of LCD screen on the phone. TFT (thin-film transistor)-LCD IPS (in-plane-switching LCD).TFT technology using thin film transistors (thin-film transistor) to help improve picture quality. However, this technology has a narrow viewing angle and visibility under direct sunlight. TFT spend quite a lot of energy. TFT so often used on mobile phones low level.
IPS-LCD screen, present on the iPhone and Motorola Droid X 4 (labeled “Retina Display”), to help improve the view and consume less power than TFT LCD screen. The device commonly used high-performance IPS-LCD screen.
Technology AMOLED (Active-matrix organic light-emitting diode) on the popular high-end phones such as Google Nexus One, HTC Droid Incredible. AMOLED display well under direct light, however, that some users for AMOLED color too dark. Through actual use, AMOLED also consume more power as LCD.
Samsung Galaxy S is the first phone to use Super AMOLED technology, technology developed by Samsung. Super AMOLED touch sensors placed on the screen, do not create separate classes, which makes Super AMOLED screen technology into the thinnest on the market today. Super AMOLED and have good response rates than other AMOLED.
Touchscreen
Touch-screen handset in direct contact with the interface and the phone’s operating system. Currently, there are two types of touch screen handset is used on sensitive resistors and capacitive sensors. Resistive touch screen consists of two layers of conductive material, the distance between the two layers is very small. When a user touches a finger to a point on the screen, two layers of conductive material will touch each other and form a circuit in the finger touch location. Information from this circuit will be transmitted to the processor of the handset.
Capacitive touch screens are often present on the line luxury handset as HTC EVO 4G, Droid Motorola, iPhone. Capacitive touch screen consists of a layer of glass coated with transparent conducting layer. The human body itself is also conductive, so when a finger touches the screen, you have interrupted static electricity at the touch location.
Battery
Most phones use lithium-ion (Li-ion), lithium chemicals inside the battery (battery cell), they move to the cathode of the battery and generate electricity. Li-ion battery can be recharged and used again, life is more than 2 to 3 times higher than alkaline batteries (alkaline).
Phone screens often use large 1500mAh Li-ion battery, the phone is usually smaller screen 1400mAH Li-ion battery.
If you need longer battery life than the battery comes with your phone, you can equip yourself with Li-ion batteries have higher capacity. You should also note, time and time waiting to receive / make calls will vary depending on the number of phone applications running, screen brightness, or 4G features Wi-Fi/GPS open or shut, …
Cameras (Camera)
Megapixel parameters to determine the size of the camera sensor (the sensor inside the camera function to convert optical images into electronic signals). Pixels (pixels) the higher the image resolution is higher. However, if you only see pictures on the phone or on your computer, you will be hard to distinguish the image quality.
Comparison between the camera and shooting professional digital camera (Digital SLR), more megapixels is unlikely to create beautiful photographs. There are many factors that affect image quality as the lens (Nokia N-Series for its Carl Zeiss lens, this is a company specialized in manufacturing lenses for high-end SLR camera), the ability to focus accurately , shutter speed (very important when shooting moving subjects). Shooting modes in different lighting environments (indoor, dawn, noon, night …) will help improve the image quality.
3G and 4G services
Most handset, if it supports 3G or 4G access networks, are clearly about a maximum speed of access on the device or service on the specifications. When choosing a network, you should consult the website service provider for coverage area, how strong waves, weak …
Noise reduction / prevent noise
Help prevent noise voices more clearly. Ability to prevent noise depending on the design of the phone microphone.
Previously, phone use many different solutions to prevent noise, improves voice, but now the new handset, such iPhone 4, uses two microphones, a microphone to record voice, the other using microphones recorded noise around. Voice recognition microphone designed to be user mouth, while the microphone records the noise is placed on top of the phone. Software in the phone’s audio chip will record ambient sounds, then calculate, compare and refine the sound of the voice recognition microphone. Result, language becomes clear. Now the technology to prevent noise becomes quite important feature on the handset.
MicroSD memory card storage
SD Card (Secure Digital), MicroSD and MiniSD cards are commonly used storage on handheld devices to store pictures, movies, music. The difference between SD, MiniSD and MicroSD is their size. According to iSupply, most mobile phones were launched in 2010 using MicroSD cards.
If you need to store large amounts of pictures, videos, music, select your memory card to store large capacity as possible. MicroSD card for use on mobile phones typically have capacities ranging from 2GB to 32GB, 2GB cost about U.S. $ 10 ($ 10, ~ 200,000), 16GB (Class 4) is about U.S. $ 50 ($ 50, ~ 1,000,000 ), 32gb cost about U.S. $ 150 ($ 150, ~ 3,000,000)
SD Association set up multiple levels of speed (speed class) for different SD memory card. The level (class), this represents a minimum write speed of data onto a memory card. Here are some common level of speed and ability to better support the file format, launched by the SD Association.
Class 2: Write the H.264 video compression standard, MPEG-4, MPEG-2.
Class 4: video recording MEPG-2 (HDTV), continuous shooting DSC
Class 6: DSC-megapixel continuous shooting, video camera, professional photography.
Class 10: video recording Full HD (1080p), HD sequence.
Gyro and accelerometer
Most viewed handset equipped with the accelerometer as a standard. Accelerometer can detect and locate the phone (located vertical or horizontal) to automatically rotate the screen accordingly. Accelerometer is also used in some applications such as driving games.
Gyro to record the exact location over the phone, three-dimensional space. If you move the phone away or close your position, gyro can detect motion and record it. This feature is useful for those who play games. In the future, the gyro will have an important role in control applications, interactive motion. But now, if you are not interested in gaming handset is equipped with gyro is not necessary.
Bluetooth and Wi-Fi
Bluetooth and Wi-Fi are common features on the handset. Bluetooth is a wireless technology that allows transmission / receive data between two devices at short distances. Bluetooth is commonly used to transfer data between phones with headsets, computers. Bluetooth is Bluetooth 2.1, Bluetooth 3.0. The difference between these two is the Bluetooth standard distance and speed / receive data between two devices.
Bluetooth 2.1 with data transmission distance is about 9 meters. Although Bluetooth is not considered a data transfer method is ideal, but it is suitable for data transmission between the phone and headset. Bluetooth 3.0 transfer speeds and receive large data faster (about 24Mbps). We Bluetooth 3.0 is relatively new, and not the device is also equipped.
Wi-Fi 802.11a/b/g/n standards out there, each will have a standard transmission rate / receive various data. Most current handset is equipped with Wi-Fi 802.11b / g (11Mbps speed of 802.11b, 802.11g 54Mbps speeds), and connection distance of about 38 meters far.
The usually high end handset is equipped with Wi-Fi 802.11n speed transmission / receiving data is high (can reach up to 600Mbps), and connection distance can reach 69 meters. But to achieve such speeds, the device also depends on many factors, including factors are quite important wireless router (wireless router). Router to provide Wi-Fi 802.11n along with the handset