Information about the width, i. Information about the height, i. Estimated volume of the device, calculated from the dimensions provided by the manufacturer.

Applies for devices in the form of a rectangular parallelepiped. GSM Global System for Mobile Communications was developed to replace the analog cellular network 1Gtherefore it is referred to as a 2G mobile network.

Based on the GSM standard, it is deemed as a 3G mobile network standard. LTE is deemed to be the fourth generation 4G of mobile communications technology.

A further development of the technology is called LTE Advanced. There are several network technologies that enhance the performance of mobile networks mainly by increased data bandwidth.

Usually cameras with larger sensors and less pixel density tend to provide better image quality despite the lower resolution. Level 2 cache memory L2 The L2 level 2 cache memory is slower than L1, but has a larger capacity, instead, which allows it to cache more data. Microsoft lumia 640 xl lte dual sim questions Operating System.

Information about the communication technologies supported by the device and their respective uplink and downlink bandwidth.

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.

Its main function is to interpret and execute instructions contained in software applications. The CPU bits are determined by the bit-size of the processor registers, address buses and data buses.

Information about the set of instructions the processor can execute. The cache memory is used by the processor in order to shorten the time needed to access data and instructions that a frequently used.

The L1 level 1 cache memory has a small volume, but operates faster than the RAM and the rest cache memory levels. If the processor does not find the data needed in L1, it continues to look for it in the L2 cache memory.

All the major apps are on Windows Phone, so the app gap is not an issue. Overall, it’s a great phone for the price but I’ll probably get the Lumia XL as soon as my budget allows. Microsoft lumia 640 xl lte dual sim questions My biggest fear was that I would be doing a downgrade on the XL camera vs. Display and camera is comparable with ANY phone.

In some processors the search in L1 and L2 is simultaneous. The L2 level 2 cache memory is slower than L1, but has a larger capacity, instead, which allows it to cache more data.

Just like L1, it is much faster than the system memory RAM.

09.02.2020 – Image resolution Information about the maximum image resolution of the secondary camera. If your day job itself is playing with your smartphone, go for an Android One person found this helpful. Volume Estimated volume of the device, calculated from the dimensions provided by the manufacturer.

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.

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The frequency of the processor describes its clock rate in cycles per second. They handle the computation of graphics in various applications.

Data in the RAM is lost after the device is turned off or restarted. Information about the capacity of the built-in storage of the device.

Sometimes one and the same model may is offered in variants with different internal storage capacity. The various types of memory cards are characterized by different sizes and capacity.

Information about the supported types of memory cards. 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. Information about the number of pixels per centimeter ppcm or per inch ppi of the display.

The higher the pixel density, the more detailed and clearer is the information displayed on the screen. The color depth of the display is also known as bit depth.

It shows the number of bits used for the color components of one pixel.

Information about the maximum number of colors the screen can display. Sensors vary in type and purpose. They increase the overall functionality of the device, in which they are integrated.

Digital cameras use image sensors for taking photos. The sensor characteristics are some of the main factors determining the quality of the camera integrated in the mobile device.

Information about the dimensions of the image sensor used in the device. Usually cameras with larger sensors and less pixel density tend to provide better image quality despite the lower resolution.

Sensors vary in type and purpose. The latest Nokia phones and accessories | Nokia phones Disabling it will result in some disabled or missing features.

A smaller pixel size allows the image sensor to use more pixels thus providing better image resolution. On the other hand, this may negatively impact noise levels and decrease image quality at high ISO settings.

Crop factor is the ratio of the dimensions of a full frame camera’s sensor 36 x 24 mm, which equals the frame size of a 35 mm film and the dimensions of the image sensor of the device.

The number shown is the ratio between the diagonals of a full frame sensor 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. Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens.

A focal length, which results in the same field of view on a full-frame 35 mm camera, is also provided. Cameras of mobile devices use mainly a LED or a Xenon flash.

The LED flash has a softer burst of light and in contrast to the much brighter Xenon flash, is used for recording videos as well.

One of the main characteristics of the cameras of mobile devices is their resolution, which shows the number of pixels on the horizontal and vertical dimensions of the image.

Information about the maximum number of frames per second fpssupported by the device while recording a video at maximum resolution. Some of the main standard frame rates for recording and playing video are 24p, 25p, 30p, 60p.

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

Information about the maximum image resolution of the secondary camera. Often, the resolution of the secondary camera is lower than the one of the primary camera.

The loudspeaker is a device, which reproduces various sounds such as ring tones, alarms, music, voice calls, etc.

Information about the type of speakers the device uses. Some devices have the possibility to serve as Wi-Fi Hotspots by providing internet access for other nearby devices.

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.

Bluetooth uses various profiles and protocols related to faster exchange of data, energy saving, better device discoverability, etc.

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Some of those supported by the device are listed here. Type of the USB connector used by the device. With each following version the rate of data transfer is increased.

Information about some of the most widely used connectivity technologies supported by the device. List of some of the most common audio file formats and codecs supported standardly by the device.

List of some of the most common video file formats and codecs supported standardly by the device. The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours.

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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.

This SAR rating shows the maximum level of exposure to electromagnetic radiation taken when the device is placed next to the ear. The applicable limit for the US is 1.

The SAR body rating shows the maximum level of exposure to electromagnetic radiation when the device is positioned against the body at the hip.

Dimensions : Brand Brand name of the company that manufactures the device.

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Microsoft Model Model name of the device. RM Width Information about the width, i. Dual SIM stand-by Both cards are active. Microsoft Windows Phone 8.

Lumia Denim. Suggest an edit. Samsung Galaxy A Microsoft Lumia Microsoft Lumia XL. Hafury UMax. Nokia Lumia Tecno Camon 11S. Gome U7. Microsoft Lumia LTE.

Width Information about the width, i. Height Information about the height, i.

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Volume Estimated volume of the device, calculated from the dimensions provided by the manufacturer. White Black Orange Cyan. Features Information about some specific features related to the SIM card s of the device.