A cell phone that has built-in camera that helps the user to shoot still pictures and/or video sequence which can be stored in the phone for reproduction or copying to another device later

Any graphic, image or photo can be construed as a collection of tiny dots. Each dot is called a pixel. The graphic, image or photo that one sees is created out of millions of pixels: hence, megapixels.

Video capture is the process of converting an analog video signal - such as that produced by a cell phone equipped with a Camera - to digital form. The resulting digital data are referred to as a digital video stream, or more often, simply video stream

Zoom is a feature of many cameras and camera phones that make the subject appear "closer", filling more of the image area. The other type of zoom is digital zoom, a software feature that has trade-offs in image size or quality. Many cameras and some camera phones offer both optical and digital zoom, for increased total zoom. Optical zoom uses moving lenses to make the subject appear closer. Unlike digital zoom, additional detail is visible when optical zoom is used

A wireless personal area network (PAN) specification that connects phones, computers, appliances, etc. over short distances without wires by using low power radio frequencies

Bluetooth allows you to leave your phone in your pocket, while talking on your phone with a Bluetooth headset - with no wires. You can also exchange contact or scheduling information with other Bluetooth-enabled phones nearby, or send such information to a nearby Bluetooth-enabled printer

General Packet Radio Service. A packet-switched technology that enables high-speed wireless Internet and other data communications

GPRS offers a tenfold increase in data speed over previous technologies, up to 115kbit/s (in theory). Typical real-world speeds are around 30-40 Kbps. Using a packet switching, subscribers are always connected and always on-line

GPRS is considered a 2.5G technology

The Infrared communication is a direct one-to-one, line-of sight communication, which means that data can be transferred only between two devices at a time and they must be within a few feet distance and pointed at each other

In order to use infrared light to transfer data, the devices must be equipped with Infrared port, which transmits or receives the infrared signals. The transmission rates of the Infrared ports are about the same as those of the traditional parallel ones

Universal Serial Bus- is a plug-and-play interface for connecting a computer and add-on devices such as joysticks, keyboards, wireless phones, scanner, cameras etc

USB supports hot-swap (ability to add a new device without having to reboot the computer) USB supports data speed of 12 megabits per second

Wi-Fi is short for wireless fidelity. It is a trademark of the Wi-Fi Alliance, a nonprofit industry association. Wi-Fi allows wireless connection which allows computers send and receive data within the range of base station

Wi-Fi networks use radio technologies called IEEE 802.11b or 802.11a to provide secure, reliable, fast wireless connectivity

Wi-Fi networks operate in the unlicensed 2.4 and 5 GHz radio bands, with an 11 Mbps (802.11b) or 54 Mbps (802.11a) data rate or with products that contain both bands (dual band), so they can provide real-world performance similar to the basic 10BaseT wired Ethernet networks used in many offices

A button on a telephone that takes the place of pressing and quickly letting go of the switch hook.It is used for various functions, including calling the attendant, call waiting, call transfer, conferencing and placing a line on hold

This lets you speak a name to dial a number instead of entering a number manually or choosing it from the phone book. There are two types: 1. Speaker-dependent (recorded) With speaker-dependent, voice dial entries must be explicitly created by speaking and recording the name 1-3 times.   2. Speaker-independent (recognition) With speaker-independent voice recognition, no recording is required. The name can be spoken by anyone, and the phone will automatically match the spoken name with the closest name entered in the phone book.

Some phones include an integrated FM radio for listening to live-broadcast FM radio stations. Some phones with this feature require that a headset be connected to use this feature, so that the headset wire can be used as an antenna.

Since this feature allows the phone to receive FM radio directly using a separate antenna, it does not use the cellular network, and therefore does not cost anything to use regardless of cellular service plan

Many phones include simple games for the user to pass the time when waiting, travelling, etc. The games referred to here are ones built into the phone, that do not require a connection and airtime to play. (There are games available over the Wireless Internet that do require a connection and thus airtime.)

Many phones also include the ability to download new games wirelessly. There are several different technologies for downloadable games, including Java, BREW, Mophun, and WGE. The technologies are incompatible, although some phones support more than one technology

MPEG-4 A lossy compression standard for digital video and audio, developed by a working group of ISO, called the Moving Picture Experts Group (MPEG) and standardized in October 1998. MPEG-4 is based on MPEG-1, MPEG-2 and a variation of Apple's QuickTime file format.

MPEG-4 offers a variety of compression options, including low-bandwidth formats for transmitting to wireless devices. It can identify and deal with separate audio and video objects in the frame, which leads to more efficient compression of each element.

MP3 Acronym for MPEG audio layer 3, which is a compression audio format, designed to reduce significantly the amount of data required to represent audio signal.

MP3 is capable of 12:1 compression without sacrificing sound quality. MP3 files have a file extension ".mp3". They have different bit rates, varying from 32 to 320 kbit/s

Different formats for Music Player can be

MP3: Acronym for MPEG audio layer 3. This format is designed to reduce significantly the amount of data required to represent audio signal

AAC: Advanced Audio Coding (AAC) is a standardized, lossy compression and encoding scheme for digital audio

WMA: Windows Media Audio: An proprietary format for audio compression from Microsoft, this competes with the MP3 and AAC methods.

AMR: Adaptive Multi-Rate: A variable rate speech codec selected by the 3GPP for the 3G evolution of the GSM cellphone system (WCDMA).

WAV: The native digital audio format in Windows. Using the .WAV file extension, 8-bit or 16-bit samples can be taken at rates of 11,025 Hz, 22,050 Hz and 44,100 Hz. The highest quality (16-bit at 44,100 Hz) uses 88KB of storage per second.

m4A: MPEG-4 Part 14, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4.

MP4: MP4 files are container formats that can hold a mix of multimedia objects (audio, video, images, animations, menus, etc.).

eACC+: Acronym for Advanced Audio Coding. AAC is an audio codec that has better audio quality and compression when compared with MP3.

A ring tone is the audible alert that the phone emits to notify you of an incoming phone call. All contemporary phones support multiple ring tones, some have built-in ring tone composers and some can download ring tones from other phones or the internet.

polyphonic ring tones have the ability to produce 40 separate sounds at once. This makes for music that is much richer and the tunes sound more like the music you know

Electronic Mail Ability to send or receive email using WAP or GPRS connectivity of the cell phone

Multimedia Messaging Service A further extension of SMS and EMS. MMS is designed to make use of newer and quicker mobile transmission methods such as GPRS, HSCSD, EDGE and UMTS, involving the attachment of multimedia extensions to messages, such as video and sound

Short Message Service A service that enables subscribers to send short text messages (usually about 160 characters) to and from mobile phones.Short Message Service - Ability to send or receive short text messages

The maximum length of time a cell phone (with full charge on a standard battery) can remain turned on and ready to send and receive calls or data transmissions.

Standby time is reduced by the amount of time the phone is used for talking because talking on a phone draws more energy from a battery than standby mode

A broad segregation of all the cell phones in this portal into four different time spans based on their standby time values

Example: 101 hr - 200 hr (109) 201 hr - 300 hr (107) 301 hr or More (58)

The number within brackets denote the no. of products available in that particular value band

Refers to the 2G (GSM 900 / 1800 / 1900) and 3G networks (UMTS 2100)

A key part of any mobile phone specification is its operating frequency bands. The supported frequency bands determine whether a certain handset is compatible with a certain network carrier.

2G (second generation) is a standard for digital cellular communications based on narrowband TDMA (Time Division Multiple Access), which allows eight simultaneous calls on the same radio frequency.

3G (third generation). Analog cellular phones were the first generation. Digital marked the second generation. 3G is loosely defined, but generally includes high data speeds, always-on data access, and greater voice capacity.

The high data speeds are possibly the most prominent feature of 3G Networks and certainly the most hyped. They enable such advanced features as live, streaming video. There are several different 3G technology standards. The most prevalent is UMTS, which is based on WCDMA

The length of time a wireless device may be engaged in transmission (phone conversations, sending or receiving data) before it runs out of battery power. Talk time, expressed in hours and minutes, is much shorter than standby time because transmission requires more power

A broad segregation of all the cell phones in this portal into four different time spans based on their talk time values

Example: 101 hr - 200 hr (109) 201 hr - 300 hr (107) 301 hr or More (58)

The number within brackets denote the no. of products available in that particular value band

A standard power source that supplies the necessary electrical power to the handset of a cellphone for it to perform the desired functions

A battery charger is a device used to put energy into a cell or (rechargeable) battery by forcing an electric current through it.

The charge current depends upon the technology and capacity of the battery being charged. For example, the current that should be applied to recharge a 12 V car battery will be very different from the current for a mobile phone battery

The principal element of a cellphone system that is held in hand during its operation for the purposes of its use and control

Headphones combined with a microphone. Used in cell phones and by people in telephone-intensive jobs, headsets provide the equivalent functionality of a telephone handset with hands-free operation.

Many people use headsets at the computer (typically in a call-centre) so they can converse and type comfortably. Headsets typically have only one speaker like a telephone, but also come with speakers for both ears

Acronym for Multi Media Card, which is a removable flash memory card, designed to provide storage for mobile phones, PDAs and other handheld devices.

It was jointly developed by SanDisk and Siemens AG/Infineon Technologies AG and introduced in 1997. MMC uses Flash technology for read/write applications and ROM technology for read-only applications

Mobile phones come in several different physical styles (form factors). While manufacturers are continually coming up with new types of designs, there are several common categories used on this site to describe form factors: Bar: (AKA candy-bar or block) This is the most basic style. The entire phone is one solid monolith, with no moving parts aside from the buttons and possibly antenna.   Clamshell: (AKA folder) This type of phone consists of two halves, connected by a hinge. The top half usually contains the speaker and display, with the bottom half containing the keypad and remaining components. The main display and keypad are protected when closed, although many phones have a secondary display on the outside. Flip: This type of phone is a cross between the Bar and Clamshell types. Most of the components of the phone are in one part, but a thin "flip" part covers the keypad and/or display when not in use. Slide: This type has a design similar to a clamshell, with a large main display and speaker in one half, and the keypad and battery in the other half. But the two halves slide open instead of using a hinge. Slide designs allow the main display to be seen when closed, and are generally easier to open and close one-handed. Swivel: This type is similar to the slide type, with a large main display and speaker in the top half, and the keypad and battery in the lower half. But the two halves pivot at one point instead of sliding.

Memory card slots are used primarily to add memory to a phone, in the form of a memory card. Extra memory can be used to store and transfer photos, videos, music, computer files, or backups of phone data such as the phone book and calendar.

There are several different types of cards. Each has a different shape and size, but cards from a phone can also be used with other devices which use the same type of card. Such devices might include handhelds, digital cameras, and MP3 music players

Speaker phone allows the phone to be used at a short distance, without the phone being held next to the face, (and without using a headset.) It allows a small group of people near the phone to all hear and participate in the conversation.

It is also useful for hands-free, safe operation in an automobile, and when on hold for a long period of time

Color LCDs come in many types. STN, TFT, and TFD are several common technologies used. STN features low power consumption and low cost, at the expense of image quality. TFT features excellent image quality and response time, but is expensive and consumes more power. TFD combines the best of both. Colors LCDs can also be transmissive, reflective, or transflective. Many newer LCD displays are "transflective", meaning they combine the best properties of both transmissive and reflective displays.

Maximum resolution, measured in pixels, refers to the highest quality of image that a cellphone can display

Display or Screen size is the measure from bottom corner to opposite top corner of the viewable screen of a cellphone

Indicates the product dimensions in mm. Specified values are in the order for Length, width and depth (or thickness) of the product

Memory card slots are used primarily to add memory to a phone, in addition to its standard built-in memory, in the form of a memory card. Total memory is the sum of built-in memory that comes as standard with the cell phone and any additional memory that is provided by way of add-on memory cards like MMC, SD card, mini XD, micro SD, xD Picture Cards etc.,

Extra memory can be used to store and transfer photos, videos, music, computer files, or backups of phone data such as the phone book and calendar

Weight of the product measured in Kg

A broad segregation of all Cell phones described in this portal into four different Weight bands based on their weights

Third generation wireless service; designed to provide high data speeds, always-on data access, and greater voice capacity. The high data speeds, measured in Mbps, enable full motion video, high-speed internet access and video-conferencing

Acronym for Enhanced Data rates for GSM Evolution, also known as Enhanced GPRS (E-GPRS), which is a digital mobile phone technology, based on the GSM standard. It is designed to increase the capacity and data rates in GSM networks.

It enables actual data speeds of about 90-120 kbps (384 kbps in theory). As EDGE is a superset to GPRS, it can operate on any network with GPRS deployed, requiring only a software upgrade implementation.

Is a programming language using which allows programmers to develop certain tools and application programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs)

Operating System – like - Microsoft Windows, Linux, Unix, Symbian etc.

Personal Digital Assistant; A top-of-the-range personal organizer which allows you to store information and to use simple computer programs

Push email utilizes a mail delivery system with real-time capability to “push” email through to the client as soon as it arrives, rather than requiring the client to poll and collect or pull mail manually.

Push email differs from conventional email systems that are “pull” oriented. The difference between this scheme and push email is that, with push email, the mail is pushed through to the client without waiting for polling

A Touchscreen is a display which can detect the location of touches within the display area. This allows the display to be used as an input device, removing the keyboard and/or the mouse as the primary input device for interacting with the display's content

Such displays can be attached to computers or, as terminals, to networks. Touchscreens also have assisted in recent changes in the design of personal digital assistant (PDA), satellite navigation and mobile phone devices, making these devices more usable