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Karbonn Alfa A18 - Specification, Features.

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Basic characteristics Karbonn Alfa A18
Dual core
4.0" (10.16 cm)
4 GB
2 MP
1400 mAh
512 MB
Quick charging:Quick Charge is a technology found in Qualcomm Snapdragon systems-on-chip to charge devices faster than standard USB rates. It is one of several competing technologies going beyond 5 V and 2 A, such as Mediatek Pump Express, OnePlus Dash Charge and Motorola TurboPower. Quick Charging emphasizes speed over efficiency in the process of how a battery works. When more volts flow into an empty battery at a high speed, it charges whichever cells it can get to first. Once 60% or thereabouts of the battery is full, it has to search for the right cells to charge.
Operating system:A smartphone operating system is essentially the engine that smoothly runs your smartphone; it manages both the hardware and the software to create an enjoyable user experience. Examples of smartphone operating systems include Android, BlackBerry and Windows.
Android v6.0 (Marshmallow)
Sim slots:
4G: Not Available, 3G: Available, 2G: Available
Multimedia Karbonn Alfa A18
Fm radio:
Audio jack:
3.5 mm
Performance Karbonn Alfa A18
Processor:The central processing unit (CPU) is the unit, which performs most of the processing inside a smartphone. To control instructions and data flow to and from other parts of the smartphone.
Dual core, 1.2 GHz
512 MB
Design Karbonn Alfa A18
10.6 mm
64.5 mm
112 grams
124.5 mm
Black, Grey, White
Display Karbonn Alfa A18
Display type:A display screen made with TFT (thin-film transistor) technology is a liquid crystal display (LCD), common in notebook and laptop computers, that has a transistor for each pixel (that is, for each of the tiny elements that control the illumination of your display). Having a transistor at each pixel means that the current that triggers pixel illumination can be smaller and therefore can be switched on and off more quickly.
Screen to body ratio:
56.71 %
Pixel density:Pixels per inch (PPI) or pixels per centimeter (PPCM) is a measurement of the pixel density (resolution) of an electronic image device, such as a computer monitor or television display, or image digitizing device such as a camera or image scanner. Horizontal and vertical density are usually the same, as most devices have square pixels, but differ on devices that have non-square pixels.
233 ppi
Screen size:The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, usually in inches. It is also sometimes called the physical image size to distinguish it from the "logical image size," which describes a screens display resolution and is measured in pixels.
4.0 inches (10.16 cm)
Screen resolution:Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, TV lines, or TVL), or to angular subtenant. Line pairs are often used instead of lines; a line pair comprises a dark line and an adjacent light line.
480 x 800 pixels
Touch screen:A touchscreen is an input device normally layered on the top of an electronic visual display of an information processing system. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus/pen and-or one or more fingers. Some touchscreens use ordinary or specially coated gloves to work while others use a special stylus/pen only. The user can use the touchscreen to react to what is displayed and to control how it is displayed; for example, zooming to increase the text size.
Yes Capacitive Touchscreen
Storage Karbonn Alfa A18
Internal memory:A reference is distinct from the data itself. Typically, for references to data stored in memory on a given system, a reference is implemented as the physical address of where the data is stored in memory or in the storage device. For this reason, a reference is often erroneously confused with a pointer or address, and is said to "point to" the data.
4 GB
Expandable memory:
Yes Up to 32 GB
Camera Karbonn Alfa A18
Camera features:
Digital Zoom
Image resolution:
1600 x 1200 Pixels
Autofocus:Autofocus (AF) is the feature of a camera that tries to ensure that your chosen subject is sharp within the photo. Sensors detect how far away the subject is from the camera, and this information is relayed to the lens, which then uses an electronic motor to adjusts the focal distance of the lens. Most point and shoot cameras are autofocus only, but all DSLRs and mirrorless cameras have the option to disable AF if desired.
0.3 MP Front Camera
Optical image stabilisation:Optical Image Stabilization has been around commercially since the mid-90s when it started being used in compact cameras and SLR lenses as a method of letting photographers shoot longer exposures without reaching for a tripod. It works by moving lens elements to counteract wobbly hand-induced camera shake, thereby reducing blur.
Battery Karbonn Alfa A18
Standby time:
Up to 180 Hours(2G)
Up to 8 Hours(2G)
Capacity:Battery capacity is a measure (typically in Amp-hr) of the charge stored by the battery, and is determined by the mass of active material contained in the battery. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain specified conditions. However, the actual energy storage capabilities of the battery can vary significantly from the "nominal" rated capacity, as the battery capacity depends strongly on the age and past history of the battery, the charging or discharging regimes of the battery and the temperature.
1400 mAh
Network connectivity Karbonn Alfa A18
WiFi:Wi-Fi is the name of a popular wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. A common misconception is that the term Wi-Fi is short for "wireless fidelity," however this is not the case. Wi-Fi is simply a trademarked phrase that means IEEE 802.11x.
Yes Wi-Fi 802.11, b/g/n
Wifi features:
Mobile Hotspot
Bluetooth:Bluetooth is a wireless technology for exchanging data over short distances. The chip can be plugged into computers, digital cameras and mobile phones.
Usb connectivity:
microUSB 2.0
Network support:
3G, 2G
GPS:The Global Positioning System (GPS) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.
Yes with A-GPS
Sim 1:
3G Bands: UMTS 2100 MHz2G Bands: GSM 1800 / 900 MHz GPRS:Available EDGE:Available
Sim 2:
2G Bands: GSM 1800 / 900 MHz

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