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Poco X2 Vs Samsung Galaxy A51 Comparison


The Poco X2 is powered by a Snapdragon 730G 2.2GHz processor. The Samsung Galaxy A51 has an Exynos 9611 2.3GHz chipset.


The Poco X2 is available in  6 GB + 64 GB or 6 GB + 128 GB or 8 GB + 256 GB variants. For the Samsung Galaxy A51, the available options are 4 GB + 64 GB or 4 GB + 128 GB or 6 GB + 128 GB or 8 GB + 128 GB variants.

The rear camera of the Poco X2 is Quad with 64 MP main sensor + 8 MP ultra-wide lens + 2 MP depth sensing lens + 2 MP macro lens and dual front camera with 20 MP main sensor + 2 MP depth sensing lens, while the rear camera of the Samsung Galaxy A51 has a Quad configuration with 48 MP main sensor + 12 MP ultra-wide lens + 5 MP depth-sensing lens + 5 MP macro and 32 MP front camera.

Comparing its power capabilities, the Poco X2 has a 4500 mAh battery. In the case of the Samsung Galaxy A51, its battery has a capacity of 4000 mAh. The Poco X2 has a 4500 mAh battery, which has 12.5% ​​greater capacity than the Samsung Galaxy A51's 4000 mAh battery.

The Poco X2 measures in thickness 8.8 mm, while the thickness of the Samsung Galaxy A51 is 7.9 mm The Samsung Galaxy A51 is thinner than the Poco X2.

The Poco X2 has a screen of 6.67 "with a resolution of 1080 x 2400 pixels, resulting in a pixel density of approximately 395 PPI. The screen size of the Samsung Galaxy A51 is 6.5", with a screen resolution of 1080 x 2400 pixels resulting in a pixel density of approximately 405 PPI. The Poco X2 has a 0.17 inch larger screen than the Samsung Galaxy A51. The Samsung Galaxy A51 has a screen pixel density of 405 ppi, higher than the 395 PPI of the Poco X2.

Comparing the weight of both smartphones, the Poco X2 weighs 208 g, including its battery. The Samsung Galaxy A51 meanwhile, weights 172 g, also with its battery included. The Samsung Galaxy A51 is lighter than Poco X2, weighing 36 grams less.


Here’s an in-depth specifications comparison between Samsung A51 Vs Poco X2.

Jump to:

  1. System  on  Chip (SOC)
  2. RAM
  3. Storage
  4. Display
  5. Rear Camera 
  6. Front Camera
  7. Audio File Formats /  Codecs
  8. Video File Formats /  Codecs
  9. Battery
  10. Price  
  11. Network
Read Also:
Poco X2 Vs Galaxy S10 Lite Comparison
Poco X2 Vs Redmi Note 8 Pro Comparison
Poco 2 Vs Realme X2 Pro Comparison



Poco X2

Samsung Galaxy A51

Brand and Model 

Brand and Model   

Brand 

Brand 

  Xiaomi
Samsung

Model 

Model 

Model name of the device.
Poco X2
Galaxy A51

Model Alias

Model Alias

Alternative names, under which the model is known.
 MZB8744IN

Poco X2 Operating System (OS)

Galaxy A51 Operating System 

An operating system (OS) is the program that manages all of the other application programs in a smartphone.
MIUI 11 (Android 10)
Android 10

User Interface (UI)

User Interface (UI)

A user interface (UI) is the graphical and usually touch-sensitive display on a smartphone that allows the user to interact with the device's apps, features, content and functions

 One UI 2.0



Poco X2 System on  Chip (SOC)

Galaxy A51 System on  Chip (SOC)    

System on chips manages and controls the operation of the hardware components such as Main processor, graphics processor and memory.

SOC 

SOC 

SOC is a microchip with all the necessary electronic circuits.
Qualcomm Snapdragon 730G Samsung Exynos 7 Octa 9611

Process Technology 

Process Technology 

Nanometer (nm) architecture is the size of a transistor. The smaller the size, the more transistors can be integrated into the processor chip, which increases the computing volume.
8 nm   10 nm 

CPU

CPU

CPU consists of multiple cores: Dual, Quad, Hexa, and Octa core. CPU cores distribute the work that comes in when you use your phone.
2x 2.2 GHz Kryo 470 4x 2.3 GHz ARM Cortex-A73
6x 1.8 Ghz Kryo 470 4x 1.7 GHz ARM Cortex-A53

CPU Bits 

CPU Bits 

Processors use their register to store data as they perform their job, so more room means more values can be stored.
 64 bits   64 bits 

Instruction Set  

Instruction Set  

The instruction set architecture (ISA) is a group of commands used by the software to manage the CPU's work.
 ARMv8  ARMv8-A

CPU Frequency 

CPU Frequency 

It is measured in Megahertz (MHz) or Gigahertz (GHz). That number represents how many times the internal clock inside the CPU ticks in cycles per second.
 2200 MHz    2300 MHz  

CPU Cores 

CPU Cores 

The core CPU is the processor unit, which implements the instructions in the program. In the old days, each processor had one core that could focus on one task at a time. Today, CPUs have dual core, quad core, hexa core and so on. It increases the performance of the device, allowing several instructions to be executed in parallel.
 8  8

GPU

GPU

GPU is a graphics processing unit, which handling the visual rendering elements of a phone's display They improve the performance in the rendering of videos, games, and other graphics.
Qualcomm Adreno 618 ARM Mali-G72 MP3

 GPU Cores

GPU Cores

The GPU consists of hundreds of smaller cores.  They handle the computation of graphics in various applications.
3



Poco X2 RAM Capacity 

Galaxy A51 RAM Capacity 

RAM (Random-Access Memory) is short-term digital storage which used by the operating system and all installed applications.
4 GB
6 GB 6 GB
 8 GB   8 GB

RAM Type  

RAM Type  

The RAM in smart phones are a type known as LPDDR (low-power double data rate) which consumes little energy and heats up very little.
 LPDDR4X LPDDR4X

RAM Channels  

RAM Channels  

More channels integrated in the SoC mean higher data transfer rates.
 Double channel Double channel

RAM Frequency  

RAM Frequency  

RAM frequency relates directly to the rate of reading/writing from/in the RAM memory.
 1866 MHz



Poco X2 Storage

Galaxy A51 Storage    

Smartphone storage is often considered as the total storage available on the device where the operating system, pre-installed apps and other system software is installed
 64 GB   64 GB 
  128 GB    128 GB 
256 GB
 UFS 2.1

Poco X2 Memory Cards 

Galaxy A51 Memory Cards 

The types can be split into three main categories; SDXC, SDHC and SD cards. The key difference is the file system the cards use, and it affects the amount of storage it can hold. SD cards cap out at 2 GB, SDHC cards can handle between 4GB and 32GB, while SDXC cards are the highest memory capacity and typically made in sizes larger than 32GB.
microSD microSD
 microSDHC microSDHC
 microSDXC microSDXC



Poco X2 Display 

Galaxy A51 Display    

The display of a smartphone is featured by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type / Technology 

Type / Technology 

One of the main features of the display is its type / technology, on which depends its performance. There are many display types used in smartphones: LCD, OLED, AMOLED, Super AMOLED, TFT, IPS and a few others.
IPS Super AMOLED

Diagonal Size 

Diagonal Size 

The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners.
6.67 in   6.5 in 
169.42 mm   165.1 mm 
16.91 cm   16.51 cm 

Width 

Width 

Approximate inner width of the screen
2.74 in    2.72 in 
  69.52 mm    69.19 mm 
  6.95 cm    6.92 cm 

Height 

Height 

Approximate inner height of the display
  6.08 in    5.9 in 
  154.5 mm   149.9 mm 
  15.45 cm    14.99 cm 

Aspect Ratio 

Aspect Ratio 

The ratio between the height and width of the display
 2.222:1   2.167:1

Resolution 

Resolution 

The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution means the greater the detail of the displayed content.
1080 x 2400 pixels  1080 x 2340 pixels 

Pixel Density 

Pixel Density 

Pixel density is calculated by dividing the diagonal pixel resolution of a display by its diagonal size. The higher the pixel density means more detailed and clear information displayed on the screen.
  395 ppi    396 ppi 
  155 ppcm   155 ppcm 

Color Depth 

Color Depth 

It shows the number of bits used for the color components of one pixel. The more bits per pixel, the higher color variety and quality of the display.
  24 bits     24 bits  
  16777216 colors    16777216 colors 

Display Area 

Display Area 

The estimated percentage of smartphone display area.
  85.1 %    89.19 % 

Other Features 

Other Features 

Information about other functions and features of the display.
 Capacitive   Capacitive 
 Multi-touch   Multi-touch 
Scratch resistant Scratch resistant
Corning Gorilla Glass 5
2.5D curved glass screen 
Oleophobic coating
120Hz refresh rate
HDR10

Poco X2 Sensors 

Galaxy A51 Sensors    

Sensors vary in type and purpose. They increase the overall functionality of the smartphone, in which they are integrated.
 Proximity Proximity
 Light Light
Accelerometer Accelerometer
 Compass Compass
 Gyroscope Gyroscope
 Fingerprint Fingerprint
 Gravity
 Pedometer
Side-mounted fingerprint sensor  In-display fingerprint sensor
 Geomagnetic



Poco X2 Rear Camera

Galaxy A51 Rear Camera    

The rear camera of the smartphone is usually placed on its back and can be combined with one or more additional cameras.

Sensor Model

Sensor Model
Manufacturer and model of the image sensor used by camera of the smartphone.
Sony IMX686  Samsung S5KGM2

Sensor type 

Sensor type 

The most common types of sensors on smartphones are CMOS, BSI, ISOCELL, etc.
CMOS BSI ISOCELL

Sensor format

Sensor format

The image sensor format is the shape and size of the image sensor. It is usually expressed in inches.
1/1.17” 1/2.25”

Pixel size

Pixel size

Pixels are the basic building blocks of digital photography: they are the individual elements that capture light to compensate for your image. Pixels are usually measured in microns (μm).  Generally, the higher the sensor size, the greater the pixel size, the greater the pixel size. The more light you can take, the better your photo.
0.8 um

Aperture

Aperture

The aperture is an opening or a hole through which light passes. Aperture controls the brightness of the image that travels through the lens and falls on 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.
 f/1.7 f/2

Flash Type

Flash Type

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.
Dual LED LED

 Image Resolution 

 Image Resolution 

One of the main features of the cameras is their image resolution. It shows the number of pixels on the horizontal and vertical dimensions of the image, which can also be displayed in megapixels, indicating the approximate number of pixels in millions. Higher resolution means more image detail.
9248 x 6944 pixels  8000 x 6000 pixels 
 64.22 MP   48 MP 

Video resolution

Video resolution

Video resolution in a smartphone refers to the number of distinct pixels that could be displayed in each dimension. Information about the maximum resolution at which the rear camera can shoot videos.
 3840 x 2160 pixels 1920 x 1080 pixels
 8.29 MP 2.07 MP

Video FPS

Video FPS

Stands for "Frames Per Second." FPS is used to measure frame rate. Information about the maximum number of frames per second (fps) supported by the rear camera while recording video at the maximum resolution. Some of the main standard frame rates for recording and playing video are 24 fps, 25 fps, 30 fps, 60 fps.
 30 fps 30 fps

Features 

Features 

Information about additional software and hardware features of the rear camera which improve its overall performance.
Autofocus  Autofocus 
Continuous shooting  Continuous shooting 
Digital zoom  Digital zoom
Optical image stabilization
 Digital image stabilization  Digital image stabilization
Geo tagging  Geotagging 
Panorama  Panorama 
HDR  HDR 
Touch focus  Touch focus 
Face detection Face detection
White balance setting   White balance setting 
ISO setting  ISO setting 
Exposure compensation  Exposure compensation 
Self-timer  Self-timer 
 Scene mode Scene mode 
 Pixel size-1.6 um (4-in-1 pixel binning)  Pixel size- 1.6 um (4-in-1 pixel binning)
 Sensor type- ISOCELL Plus
Phase Detection autofocus (PDAF)  Super Phase Detection
 6-element lens
 Angle of view- 79 degree  PDAF
10x digital zoom
 1080p @ 120 fps
 720p @ 960 fps

Secondary rear camera- 8 MP (ultra-wide angle)

Secondary rear camera - 12 MP (ultra-wide)

 Aperture size- f/2.2 (#2) Aperture size - f/2.2 (#2)
Pixel size- 1.12 um (#2) Pixel size- 1.12 um (#2)
Angle of view- 120 degree (#2)

Third rear camera- 2 MP (depth-sensing)

Third rear camera - 5 MP (depth-sensing)

 Aperture size- f/2.4 (#3) Aperture size - f/1.12 (#3)
 Pixel size- 1.75 um (#3)

 Fourth rear camera- 2 MP (macro)

Fourth Rear Camera-5 MP (Macro)
 Pixel size- 1.75 um (#4)
Aperture size- f/2.4 (#4)  Aperture size- f/2.4 (#4)
Macro shooting distance- 2 cm (#4)



Poco X2 Front Camera

Galaxy A51 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 Model

Sensor Model
Manufacturer and model of the image sensor used by camera of the smartphone.
 Samsung S5KGD1

 Sensor Type

Sensor Type

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.
ISOCELL

Aperture

Aperture

The aperture is an opening or a hole through which light passes. Aperture controls the brightness of the image that travels through the lens and falls on 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.
f/2.2

Pixel size

Pixel size

Pixels are the basic building blocks of digital photography: they are the individual elements that capture light to compensate for your image. Pixels are usually measured in microns (μm).  Generally, the higher the sensor size, the greater the pixel size, the greater the pixel size. The more light you can take, the better your photo.
0.8 um 0.8 um

Field of view

Field of view

In photography, the Field of view (FoV) depends not only on the focal length of the lens but also on the sensor size. It is derived from the lens's angle of view and the sensor's crop factor. The lens's angle of view is a measure of the angle between the two farthest separated points within the frame measured diagonally. Simply put, this is how much of a scene in front of the camera will be captured by the camera's sensor.
78 degree

Image Resolution 

Image Resolution 

One of the main features of the cameras is their image resolution. It shows the number of pixels on the horizontal and vertical dimensions of the image, which can also be displayed in megapixels, indicating the approximate number of pixels in millions. Higher resolution means more image detail.
 5963 x 3354 pixels  6560 x 4928 pixels
  20 MP  32.33 MP

Video Resolution

Video Resolution

Video resolution in a smartphone refers to the number of distinct pixels that could be displayed in each dimension. Information about the maximum resolution at which the rear camera can shoot videos.
 1920 x 1080 pixels 1920 x 1080 pixels
 2.07 MP 2.07 MP

Video FPS

Video FPS

Stands for "Frames Per Second." FPS is used to measure frame rate. Information about the maximum number of frames per second (fps) supported by the rear camera while recording video at the maximum resolution. Some of the main standard frame rates for recording and playing video are 24 fps, 25 fps, 30 fps, 60 fps.
 30 fps 30 fps

Features 

Features 

Information about additional software and hardware features of the front camera which improve its overall performance.
 Sensor size-1/2.8”
 Sensor type- ISOCELL
 Face unlock

 Secondary front camera- 2 MP (depth-sensing)

 

 Pixel size- 1.75 um (#2)
 Angle of view- 83 degree (#2)
 Aperture size- f/2.4 (#2)

Poco X2 Audio 

Galaxy A51 Audio 

Information about the type of speakers and the audio technologies supported by the device.

Speaker

Speaker

The loudspeaker is a device, which converts an electrical audio signal into a corresponding sound such as ring tones, alarms, music, voice calls, etc. Information about the type of speakers the device uses.
Loudspeaker  Loudspeaker 
Earpiece Earpiece
Hi-Res Audio
Smart PA
1217 super linear speaker 
 Dual microphone cancellation

Poco X2 Radio 

Galaxy A51 Radio    

The radio in a smartphones is a built-in FM radio receiver. Information whether the device has an FM radio receiver or not.
  Yes Yes

Poco X2 Tracking /  Positioning 

Galaxy A51 Tracking /  Positioning 

Information about the positioning and navigation technologies supported by the device.
 GPS GPS
 A-GPS  A-GPS
GLONASS GLONASS
 BeiDou BeiDou
 Galileo Galileo 

Poco X2 Wi-Fi 

Galaxy A51 Wi-Fi    

Wi-Fi is a method for devices such as smartphones to connect wirelessly to the Internet using radio waves. Wi-Fi communication between devices is realized via the IEEE 802.11 standards. Some devices have the possibility to serve as Wi-Fi Hotspots by providing internet access for other nearby devices. Wi-Fi Direct (Wi-Fi P2P) is another useful standard that allows devices to communicate with each other without the need for wireless access point (WAP).
 802.11a (IEEE 802.11a-1999) 802.11a (IEEE 802.11a-1999)
 802.11b (IEEE 802.11b-1999) 802.11b (IEEE 802.11b-1999)
 802.11g (IEEE 802.11g-2003) 802.11g (IEEE 802.11g-1999)
 802.11n (IEEE 802.11n-2009)  802.11n (IEEE 802.11n-2003) 
 802.11n 5GHz 802.11n 5GHz
 802.11ac (IEEE 802.11ac) 802.11ac (IEEE 802.11ac)
 Dual band Dual band
 Wi-Fi Hotspot   Wi-Fi Hotspot 
 Wi-Fi Direct Wi-Fi Direct
 Wi-Fi Display  Wi-Fi Display

Poco X2 Bluetooth

Galaxy A51 Bluetooth  

Bluetooth is a short-range wireless communication technology that allows devices to transmit data or voice wirelessly over a short distance.

Version 

Version 

The Bluetooth has several versions, which improve the connection speed, range, connectivity and discoverability of the devices. Information about the Bluetooth version of the device.
 5.0  5.0

Features 

Features 

Bluetooth uses many profiles and protocols for faster data exchange, energy saving, better hardware discovery, etc. Some of those supported by the device are listed here.
A2DP  A2DP 
AVRCP
DIP
HFP
HID
HSP
LE
MAP
OPP
PAN
PBAP/PAB
HOGP

Poco X2 USB 

Galaxy A51 USB 

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector Type  

Connector Type  

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.
 USB Type-C USB Type-C

Version 

Version 

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.
  2.0  2.0

Features 

Features 

The USB interface in mobile devices may be used for different purposes such as battery charging, using the device as a mass storage, host, etc.
Charging  Charging 
Mass Storage  Mass Storage 
On-The-Go On-The-Go

Poco X2 Headphone Jack 

Galaxy A51 Headphone Jack 

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in smartphones is the 3.5 mm headphone jack. Information whether the device is equipped with a 3.5 mm audio jack.
Yes Yes

Poco X2 Connectivity 

Galaxy A51 Connectivity 

Information about some of the most widely used connectivity technologies supported by the device.
 Computer sync   Computer sync 
 OTA sync 
 Tethering Tethering
 NFC
 VoLTE  VoLTE
ANT+

Poco X2 Browser 

Galaxy A51 Browser    

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
HTML  HTML 
HTML5  HTML5 
CSS 3  CSS 3 



  Poco X2 Audio File Formats /  Codecs    

   Galaxy A51 Audio File Formats /  Codecs    

Smartphones support various audio file formats and codecs, which respectively store and code/decode digital audio data. List of some of the most common audio file formats and codecs supported standardly by the device.
AAC  AAC 
AAC+ / aacPlus / HE-AAC v1
AMR / AMR-NB / GSM-AMR  AMR / AMR-NB / GSM-AMR 
AMR-WB AMR-WB
 aptX / apt-X
 aptX HD / apt-X HD / aptX lossless
eAAC+ / aacPlus v2 / HE-AAC v2 eAAC+ / aacPlus v2 / HE-AAC v2
FLAC  FLAC 
M4A
MIDI  MIDI 
MP3 
OGG  OGG 
WMA  WMA 
 WAV  WAV 



Poco X2 Video File Formats /  Codecs

Galaxy A51 Video File Formats /  Codecs    

Smartphones support various video file formats and codecs, which respectively store and code/decode digital video data. List of some of the most common video file formats and codecs supported standardly by the device.
3GPP  3GPP 
3GPP2
AVI  AVI 
DivX DivX
 Flash Video Flash Video
H.263 H.263
H.264 / MPEG-4 Part 10 / AVC video H.264 / MPEG-4 Part 10 / AVC video
H.265 / MPEG-H Part 2 / HEVC
MP4 MP4
 MKV MKV
VC-1
VP8
VP9
 WebM WebM
 WMV WMV
WMV7
WMV8
Xvid Xvid



Poco X2 Battery 

Galaxy A51 Battery    

The batteries smartphones differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity

Capacity

The capacity of a battery shows the maximum charge, which it can store, measured in mili-Ampere hours.
4500 mAh 4000 mAh

Type 

Type 

In terms of chemical composition, 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).
 Li-Polymer Li-Polymer

Features 

Features 

Information about some additional features of the device's battery.
 Non-removable  Non-removable 
 Fast charging Fast charging

Charger Output Power

Charger Output Power

Information about the electric current (amperes) and voltage (volts) the charger outputs. The higher power output allows faster charging.
 5 V / 2 A
9 V / 3 A  9 V / 1.67 A

Poco X2 Launch 

Launch   

Announced 

Announced 

 2020, 6th February  2019, 13th December

Status 

Status 

 Release 11th February 2019 Release December 2019



Poco X2 Price 

Galaxy A51 Price   

6 GB + 64 GB = 225 $ 
6 GB + 128 GB = 239 $ 6 GB + 128 GB =  335 $
 8 GB + 256 GB = 281 $

Poco X2 Design 

Galaxy A51 Design    

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Colors 

Colors 

Information about the colors, in which the device is available in the market.
Prism Crush Black
Atlantis Blue Prism Crush Blue
Prism Crush Pink
Prism Crush White

Width 

Width 

The horizontal side of the device when it is used in its standard orientation.
  76.6 mm   73.6 mm 
  7.66 cm    7.36 cm 
  0.25 ft   0.24 ft 
  3.02 in    2.9 in 

Height 

Height 

The vertical side of the device when it is used in its standard orientation.
 165.3 mm  158.5 mm 
 16.53 cm  15.85 cm 
  0.54 ft   0.52 ft 
  6.51 in    6.24 in 

Thickness 

Thickness 

Information about the thickness / depth of the device in different measurement units.
  8.79 mm   7.9 mm 
  0.88 cm    0.79 cm 
  0.03 ft   0.03 ft 
  0.35 in    0.31 in 

Weight 

Weight 

Information about the weight of the device in different measurement units.
  208 g  172 g
  0.46 lbs  0.38 lbs
  7.34 oz  6.07 oz

Volume 

Volume 

Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped.
  111.3 cm3  92.16 cm3
  6.76 in3   5.6 in3

Body Materials

Body Materials

Materials used in the fabrication of the device's body.
Aluminium alloy Plastic
 Glass

Poco X2 SIM Card 

Galaxy A51 SIM Card    

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM Card Type  

SIM Card Type  

Information about the type and size (form factor) of the SIM card used in the device.
Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm)   Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) 
 Nano-SIM / microSD

Number of SIM Cards 

Number of SIM Cards 

Information about the number of SIM cards, supported by the device.
  2   2

Features

Features

Information about some specific features related to the SIM card(s) of the device.
Dual SIM stand-by  Dual SIM stand-by

Poco X2 Mobile Network Technology and Bandwidth 

Galaxy A51 Mobile Network Technology and Bandwidth   

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
 UMTS (384 kbit/s)   UMTS (384 kbit/s) 
 EDGE   EDGE 
 GPRS    GPRS  
 HSPA+   HSPA+ 
LTE LTE Cat 12 (102.0 Mbit/s, 603.0 Mbit/s)
TD-SCDMA



Poco X2 Networks

Galaxy A51 Networks    

A mobile (cellular) network is a radio system, which allows a large number of smartphones to communicate with each other.

GSM

GSM

GSM (Global System for Mobile Communications) is a standard to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices. It has been improved with the addition of General Packet Radio Services (GPRS) and later via the Enhanced Data rates for GSM Evolution (EDGE) technology.
GSM 850 MHz (B5) GSM 850 MHz (B5)
GSM 900 MHz (B8) GSM 900 MHz (B8)
GSM 1800 MHz (B3) GSM 1800 MHz (B3)
GSM 1900 MHz (B2) GSM 1900 MHz (B2)

W-CDMA

UMTS

W-CDMA (Wideband Code Division Multiple Access) is a third generation mobile networks. It is one of the three different UMTS interfaces together with the TD-SCDMA and the TD-CDMA. The standard provides faster data transfer speeds and allows more users to connect to the network simultaneously.
W-CDMA 850 MHz (B5) UMTS 850 MHz (B5)
W-CDMA 900 MHz (B8)  UMTS 900 MHz (B8)
 W-CDMA 1900 MHz (B2) UMTS 1900 MHz (B2)
 W-CDMA 2100 MHz (B1) UMTS 2100 MHz (B1)

LTE

LTE

 LTE is a 4G wireless communications standard developed by the 3rd Generation Partnership Project  based on the GSM/EDGE and UMTS/HSPA technologies in order to increase the speed and capacity of wireless data networks. A further development of the technology is called LTE Advanced.
LTE-FDD 850 MHz (B5) LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)  LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)  LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)  LTE-FDD 2100 MHz (B1)
 LTE-FDD 2600 MHz (B7)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)

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