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Samsung Xcover 4 UK SIM-Free Smartphone - Dark Silver

£28.5£57Clearance
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The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours. One of the main characteristics of the cameras is their image resolution. It states the number of pixels on the horizontal and vertical dimensions of the image, which can also be shown in megapixels that indicate the approximate number of pixels in millions. The SAR body rating shows the maximum level of exposure to electromagnetic radiation when the device is positioned against the body at the hip. The highest SAR value of mobile devices allowed in the US is set to 1.6 W/kg per 1 g of tissue. It is specified by the FCC and the CTIA follows whether the mobile devices comply with this standard. The rear cameras of mobile devices use mainly a LED flash. It may arrive in a single, dual- or multi-light setup and in different arrangements.

Information about additional software and hardware features of the rear camera which improve its overall performance. 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.System on Chip (SoC) A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device. SoC Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped. Samsung's XCover 4 uses quite a few hardware buttons. The Android menu buttons are situated below the screen. They have a clear pressure point and make a robust impression. The standby button is on the casing's right, and the volume control and a dedicated XCover button are found on the left. Short pressure enables the flashlight, and longer pressure launches the camera. All buttons are easy to feel and have a clear pressure point. Even if Samsung's Galaxy XCover 4 is not quite as resistant as it appears, it is protected better than many other very sensitive smartphones. The robust plastic casing does not look bulky and even the battery can be replaced. Water and dust protection have been increased compared with the predecessor, and the speaker now functions impeccably when the handset is wet. After using it in water, we found a drop of water under the rear cover. Thus, the device should be dried separately here.

Networks A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other. GSM UMTS stands for Universal Mobile Telecommunications System. Based on the GSM standard, it is deemed as a 3G mobile network standard. It has been developed by the 3GPP and its major advantage is the provision of greater bandwidth and spectral efficiency, due to the W-CDMA 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. The Samsung Galaxy Xcover 4 is an Android smartphone produced by Samsung Electronics and released in April 2017. It is the successor to the Samsung Galaxy Xcover 3. The Xcover 4 is waterproof and dustproof designed around the IP68 specifications.

Accessories and Warranty

The Samsung Galaxy Xcover 4 has models SM-G390F, SM-G390W, And SM-G390Y. This phone has been succeeded by the Xcover 4s. 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. Information about the width, i.e. the horizontal side of the device when it is used in its standard orientation. Battery The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices. Capacity The battery type is determined by its structure and more specifically, by the chemicals used in it. There are different battery types and some of the most commonly used in mobile devices are the lithium-ion (Li-Ion) and the lithium-ion polymer battery (Li-Polymer).

Information about the process technology used in manufacturing the chip. The value in nanometers represents half the distance between elements that make up the CPU.

Cameras

Information about the number of pixels on the horizontal and vertical dimensions of the photos taken by the front camera, indicated in megapixels as well.

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