Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped. USB interface in mobile devices may be used for different purposes such as battery charging, using the device as a mass storage, host, etc.

Battery The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices. Capacity No, this is not necessary. With older batteries this was the case. Lithium-ion batteries can be charged after use and be taken off the charger when needed.The various types of memory cards are characterized by different sizes and capacity. Information about the supported types of memory cards. 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.

Audio file formats/codecs Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data. Audio file formats/codecs CPU is the Central Processing Unit or the processor of a mobile device. Its main function is to interpret and execute instructions contained in software applications.

There are several versions of the Universal Serial Bus (USB) standard: USB 1.0 (1996), the USB 2.0 (2000), the USB 3.0 (2008), etc. With each following version the rate of data transfer is increased. Operating system Operating system is the system software, which manages and controls the functioning of the hardware components of the device. Operating system (OS) 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. Design Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications. Width Audio Information about the type of speakers and the audio technologies supported by the device. Speaker

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. Storage Every mobile device has a built-in storage (internal memory) with a fixed capacity. Storage 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. The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours.

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.

Low-end WiFi-only tablet from Lenovo with 2 GiB of RAM, 32 GB eMMC flash memory, 10.1-inch screen, 4850 mAh battery and FM radio Video file formats/codecs Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data. Video file formats/codecs Bluetooth Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances. Version Bluetooth uses various profiles and protocols related to faster exchange of data, energy saving, better device discoverability, etc. Some of those supported by the device are listed here.It's best to use a microfiber cloth, possibly with a specialized detergent. Never use kitchen towels or other paper cloths, these will leave scratches! There are several USB connector types: the Standard one, the Mini and Micro connectors, On-The-Go connectors, etc. Type of the USB connector used by the device. The technology has several versions, which improve the connection speed, range, connectivity and discoverability of the devices. Information about the Bluetooth version of the device.