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. 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. Similar to the CPU, the GPU consists of processing units called cores. They handle the computation of graphics in various applications. 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) Information about the width, i.e. the horizontal side of the device when it is used in its standard orientation.

Samsung Galaxy A21s (SM-A217F/DS 64GB/4GB) - PhoneMore Samsung Galaxy A21s (SM-A217F/DS 64GB/4GB) - PhoneMore

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. The A21s line consists of SM-A217F, SM-A217F/DS, SM-A217F/DSN, SM-A217M and SM-A217M/DS. Key upgrades over the previous model, the Samsung Galaxy A20s, include the new Exynos 850 chipset and an improved camera setup. It was announced and released in May 2020. The optical format of an image sensor is an indication of its shape and size. It is usually expressed in inches.

The Galaxy A21s has a 6.5" PLS TFT LCD Infinity O display with HD+ 720 x 1600 resolution, 20:9 aspect ratio, ~270 ppi density. The phone itself measures 163.7mm (6.44in) x 75.3mm (2.96in) x 8.9mm (0.35in) and weighs 192g (6.8oz). The phone is powered by Exynos 850 (8 nm) SoC ( System on a chip) with a octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55) CPU and a Mali-G52 GPU. The phone comes with either 4GB or 6GB RAM as well as 64GB or 128GB internal storage, which can be expanded via a microSD card of up to 512GB. It comes with a non-removable 5000mAh lithium polymer battery which charges with a 15W Fast Charger. It also has a rear-mounted fingerprint sensor. [1] Cameras [ edit ] 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. 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. 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. Display The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc. Type/technology

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Design Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications. Width One of the main characteristics of the display is its type/technology, on which depends its performance.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 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. The Samsung Galaxy A21s has a four camera setup arranged in an "L" shape located in the corner with a rectangular protrusion similar to that of the iPhone 11 and the Pixel 4. The array consists of a 48 MP wide angle camera, an 8 MP ultrawide camera, a 2 MP macro camera, and a 2 MP depth sensor. [3] It also has a single 13 MP front facing camera, which sits in a small punch hole on the front of the screen. The rear facing cameras can record video up to 1080p in 30 fps. The front cameras can shoot 1080p at 30 fps. [4] Software [ edit ] In India, the applicable limit for the head SAR is 1.6 W/kg per 1 g of tissue. Locally, the SAR levels are measured and certified by the Telecom Engineering Centre (TEC) or an internationally accredited lab.

Samsung Galaxy A21s full device specifications - SamMobile Samsung Galaxy A21s full device specifications - SamMobile

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. 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.

Information about additional software and hardware features of the front camera which improve its overall performance. Information about the height, i.e. the vertical side of the device when it is used in its standard orientation. Samsung Galaxy A21s is a mid-range Android smartphone designed, developed, marketed, and manufactured by Samsung Electronics as part of its Galaxy A series. This SAR rating shows the highest level of exposure to electromagnetic radiation measured when the device is placed at the hip level. The top SAR value for mobile devices used in Europe is limited to 2 W/kg per 10 g of tissue. This standard follows the ICNIRP Guidelines 1998 as well as the IEC standards and is determined by the CENELEC.

Samsung Galaxy A21s - Specifications Samsung Galaxy A21s - Specifications

In August 2021, It was revealed that Samsung had sold over 10 million units of the Samsung Galaxy A21s. Front camera Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc. Sensor format As I mentioned earlier, the Galaxy A21s comes with a quadruple-camera array, consisting of a main 48MP (f/2.0) lens, supported by an 8MP (f/2.2) wide-angle unit, 2MP (f/2.4) macro camera and a 2MP (f/2.4) depth sensor. A 13MP (f/2.2) selfie camera sits on the front of the phone.Unusually for a Samsung phone, there aren’t multiple display profiles to choose from, and sadly what we get isn’t all that special. In technical testing, it covered 73% of the sRGB colour gamut, with a total volume of just 84%. Colour accuracy isn’t up to scratch either, with a measured Delta E of 4.23. Some colours, such as light green and dark red tones, looked particularly dull.