Samsung Xcover 4 UK SIM-Free Smartphone - Dark Silver

Product Information

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 Information about the sensor type of the camera. Some of the most widely used types of image sensors on mobile devices are CMOS, BSI, ISOCELL, etc. Like its predecessor, the Galaxy XCover 4 is not suitable for extreme situations, but quite well-equipped for the uncertainties of everyday life. The hard shell conceals a solid, lower mid-range smartphone.

Information about the height, i.e. the vertical side of the device when it is used in its standard orientation. Specific Absorption Rate (SAR) The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg. Head SAR (EU)

Games

Information about additional software and hardware features of the rear camera which improve its overall performance.

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). The SAR head rating shows the highest level of exposure to electromagnetic radiation measured when the device is held next to the ear in a talk position. In Europe, the SAR limit for hand-held mobile devices is set to 2 W/kg per 10 g of tissue. This standard is specified by the CENELEC, complies with the IEC standards and follows the ICNIRP Guidelines 1998. As usual with Samsung, there are many aids for disabled users and diverse control options, such as turn to mute, emergency messages or display several apps simultaneously via a multi-window display. 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.

Software

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. 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. 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. Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped.

The device is also MIL-STD-810G certified, which means that in theory it should easily withstand salty air, high or low temperatures or low pressure. However, according to Wikipedia, the test conditions for consumer devices are not controlled since it is a military standard. Samsung can thus specify its own test criteria – this should be kept in mind. According to the manufacturer, the smartphone had to pass the following tests to achieve the MIL-STD 810G certification: Similar to the CPU, the GPU consists of processing units called cores. They handle the computation of graphics in various applications. The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours.

Emissions

One of the main characteristics of the display is its type/technology, on which depends its performance. 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. The Samsung Galaxy Xcover 4 has models SM-G390F, SM-G390W, And SM-G390Y. This phone has been succeeded by the Xcover 4s.