A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi-core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel. The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours. The aperture (f-stop number) indicates the size of the lens diaphragm opening, which controls the amount of light reaching the image sensor. The lower the f-stop number, the larger the diaphragm opening is, hence, the more light reaches the sensor. Usually, the f-stop number specified is the one that corresponds to the maximum possible diaphragm opening. Networks A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other. GSM

As with the LG K10 (2017)before, with the LG K8 (2017) the Korean manufacturer also delivers quite a high-quality budget smartphone, which offers features not always found in this price range. First, there is the decent equipment supporting NFC and the modern bluetooth standard. However, for the highlight of a fingerprint sensor, you look in vain. Instead, there is a good call sound and cameras that are very good for this price class. Precise input devices and a removable battery with a decent runtime also belong to the upsides of the LG K8 (2017), and the casing appears relatively high-quality as well. Display The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc. Type/technology

talk time is the time period a battery charge will last, if one is constantly talking on the phone in a 3G cellular network. One of the main characteristics of the display is its type/technology, on which depends its performance.

Even the K8’s GPU performance was good, as graphics tends to be an area where MediaTek chips have struggled in the past compared to their Qualcomm-based counterparts. In GFX Bench GL’s offscreen Manhattan 3.0 test, for example, the LG K8 scores a very reasonable 188 frames (around 3.0fps), putting it ahead of the 3rd Gen Moto G which only produced 103 frames (or 1.7fps). RAM (Random-Access Memory) is used by the operating system and all installed applications. Data in the RAM is lost after the device is turned off or restarted. Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. The 35 mm equivalent indicates the focal length at which a full-frame camera will achieve an angle of view that's the same as the one of the camera of the mobile device. It is measured by multiplying the native focal length of the camera by the crop factor of the sensor. The crop factor itself can be determined as the ratio between the diagonal distances of the image sensor in the 35 mm camera and a given sensor. Information about additional software and hardware features of the rear camera which improve its overall performance. Information about the width, i.e. the horizontal side of the device when it is used in its standard orientation.The instruction set architecture (ISA) is a set of commands used by the software to manage the CPU's work. Information about the set of instructions the processor can execute. The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution is, the greater the detail of the displayed content.