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Compare Huawei Y9s Vs Samsung Galaxy A51


The Huawei Y9s has a screen of 6.59" with a resolution of 1080 x 2340 pixels, resulting in a pixel density of approximately 391 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 Huawei Y9s has a screen 0.09 inches larger than the Samsung Galaxy A51. The Samsung Galaxy A51 has a screen pixel density of 405 ppi, higher than the 391 PPI of the Huawei Y9s.


The Huawei Y9s is powered by a Kirin 710F 2.2GHz processor. The Samsung Galaxy A51 has an Exynos 9611 2.3GHz chipset.

The Huawei Y9s is available in 6GB variants of RAM and 128GB storage configurations. For the Samsung Galaxy A51, the available options are 4GB / 6GB / 8GB of RAM and 64GB / 128GB of internal storage, also called ROM.


The rear camera of the Huawei Y9s is Triple with 48 MP main sensor + 8 MP ultra-wide + 2 MP and 16 MP front camera, while the rear camera of the Samsung Galaxy A51 has a Quad configuration with 48 MP main sensor + 12 MP ultra-wide + 5 MP depth-sensing + 5 MP macro and 32 MP front camera.

Comparing its power capabilities, the Huawei Y9s has a 4000 mAh battery. In the case of the Samsung Galaxy A51, its battery has a nominal capacity of 4000 mAh. Both the Huawei Y9s and the Samsung Galaxy A51 have an equal capacity battery of 4000 mAh.

Comparing the weight of both smartphones, the Huawei Y9s weighs 206 g, including its battery. The Samsung Galaxy A51 meanwhile, has a weight of 172 g, also with its battery included. The Samsung Galaxy A51 is lighter than the Huawei Y9s, weighing 34 grams less.

Huawei Y9s, Pro

  • Quick Charge (10W)
  • Great battery (4000mAh)
  • Extensive RAM (6GB)
  • High-resolution front camera (16MP)
  • High resolution triple camera (48MP + 8MP + 2MP)
  • Large screen (6.59 ")
  • Very good pixel density (391ppi)

Samsung Galaxy A51, Pro

  • Embedded fingerprint reader
  • Quick Charge (15W)
  • High-resolution front camera (32MP)
  • High resolution quad-camera (48MP + 12MP + 5MP + 5MP)
  • Gorilla Glass 3 screen
  • AMOLED screen
  • Large screen (6.5 ")
  • Very good pixel density (405ppi)

Here’s an in-depth specifications comparison between Huawei Y9s Vs Samsung Galaxy A51.

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


Huawei Y9s

Samsung Galaxy A51

Brand and Model

Brand and Model   

Brand 

Brand 

Huawei
Samsung

Model 

Model 

Model name of the device.
Y9s
Galaxy A51

Model Alias

Model Alias

Аlternative names, under which the model is known.
STK-L21

STK-LX3

Huawei Y9s 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.
Android 9.0 Pie
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
EMUI 9.1.1
 One UI 2.0



Huawei Y9s 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.
Huawei HiSilicon KIRIN 710F 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.
12 nm (nanometers)  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.
4x 2.2 GHz ARM Cortex-A73 4x 2.3 GHz ARM Cortex-A73
4x 1.7 GHz ARM Cortex-A53 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 bit  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-A  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 (megahertz)  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.
ARM Mali-G51 MP4 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.
4 3



Huawei Y9s 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

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

RAM Channels  

RAM Channels  

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



Huawei Y9s Storage 

Galaxy A51 Storage    

  64 GB 
128 GB     128 GB 
UFS 2.1

Huawei Y9s 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



Huawei Y9s 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.
6.59 in  6.5 in 
167.39 mm  165.1 mm 
16.74 cm  16.51 cm 

Width 

Width 

Approximate inner width of the screen
2.76 in   2.72 in 
70.14 mm   69.19 mm 
7.01 cm   6.92 cm 

Height 

Height 

Approximate inner height of the display
5.98 in   5.9 in 
151.98 mm  149.9 mm 
15.2 cm   14.99 cm 

Aspect Ratio 

Aspect Ratio 

The ratio between the height and width of the display
2.167:1  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 2340 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.
391 ppi (pixels per inch)   396 ppi  (pixels per inch)
153 ppcm (pixels per centimeter)  155 ppcm  (pixels per centimeter)

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 bit   24 bits  
16777216 colors   16777216 colors 

Display Area 

Display Area 

The estimated percentage of smartphone display area.
84.94 %   89.19 % 

Other Features 

Other Features 

Information about other functions and features of the display.
Capacitive  Capacitive 
Multi-touch  Multi-touch 
Scratch resistant
2.5D curved glass screen
COF (Chip-On-Flex)

Huawei Y9s 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
Side-mounted fingerprint sensor  In-display fingerprint sensor



Huawei Y9s 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 IMX582 Exmor RS  Samsung S5KGM2

 Sensor Type

Sensor type 

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

 Sensor Format

 Sensor Format

ISO measures the sensitivity of the image sensor. Image sensors operate within a specific ISO range. The higher the ISO rating is, the more sensitive to light the sensor is.

Sensor format

Sensor format

The image sensor format is the shape and size of the image sensor. It is usually expressed in inches.
1/2" 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 µm

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/1.8 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.
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.
8000 x 6000 pixels  8000 x 6000 pixels 
48 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 (frames per second) 30 fps (frames per second)

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
Digital image stabilization   Digital image stabilization
Optical image stabilization
Geotagging Geotagging 
Panorama Panorama 
HDR HDR 
Touch focus Touch focus 
Face detection Face detection
White balance settings White balance setting 
ISO settings ISO setting 
Exposure compensation Exposure compensation 
Self-timer Self-timer 
Scene mode Scene mode 
Phase detection autofocus (PDAF) Super Phase Detection
Contrast detection autofocus (CDAF)
Pixel size - 1.6 μm (4-in-1 pixel binning)  Pixel size- 1.6 um (4-in-1 pixel binning)
720p @ 480 fps
 Sensor type- ISOCELL Plus
 6-element lens
 PDAF

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

Secondary rear camera - 12 MP (ultra-wide)

Aperture size - f/2.4 (#2) Aperture size - f/2.2 (#2)
Angle of view - 120° (#2)
Pixel size- 1.12 um (#2)

Third rear camera - 2 MP

Third rear camera - 5 MP (depth-sensing)

Aperture size - f/2.4 (#3) Aperture size - f/1.12 (#3)
Fourth Rear Camera-5 MP (Macro)
 Aperture size- f/2.4 (#4)



Huawei Y9s 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.
CMOS BSI (backside illumination) 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 f/2.2

Sensor format

Sensor format

The image sensor format is the shape and size of the image sensor. It is usually expressed in inches.

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.
4608 x 3456 pixels 6560 x 4928 pixels
15.93 MP (megapixels) 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 (megapixels) 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 (frames per second) 30 fps (frames per second)

Features 

Features 

Information about additional software and hardware features of the front camera which improve its overall performance.
 Sensor size-1/2.8”
 Mechanical pop-up front camera  Pixel size- 0.8 um
 Sensor type- ISOCELL
Face unlock  Face unlock

Huawei Y9s 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

Huawei Y9s 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

Huawei Y9s 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 

Huawei Y9s 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)
802.11b (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
802.11ac (IEEE 802.11ac)
Dual band
Wi-Fi Hotspot  Wi-Fi Hotspot 
Wi-Fi Direct Wi-Fi Direct
 Wi-Fi Display

Huawei Y9s 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.
4.2  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.
LE (Low Energy) A2DP 
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP/PAB
HOGP

Huawei Y9s 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  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

Huawei Y9s 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

Huawei Y9s Connectivity 

Galaxy A51 Connectivity 

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

Huawei Y9s 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 



Huawei Y9s 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 (Advanced Audio Coding) AAC 
AAC+ / aacPlus / HE-AAC v1
AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga) AMR / AMR-NB / GSM-AMR 
AMR-WB (Adaptive Multi-Rate Wideband, .awb) 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 (Free Lossless Audio Codec, .flac) FLAC 
MIDI MIDI 
MP3 (MPEG-2 Audio Layer II, .mp3) M4A
OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus)  OGG 
WMA (Windows Media Audio, .wma) WMA
WAV (Waveform Audio File Format, .wav, .wave)   WAV 
HWA



Huawei Y9s 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 (3rd Generation Partnership Project, .3gp) 3GPP 
3GPP2
AVI (Audio Video Interleaved, .avi) AVI 
DivX (.avi, .divx, .mkv) DivX
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 H.265 / MPEG-H Part 2 / HEVC
MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v)  MP4
MKV
VC-1
VP8 VP8
VP9 VP9
WebM WebM
WMV (Windows Media Video, .wmv) WMV
WMV7
WMV8
Xvid Xvid



Huawei Y9s 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.
4000 mAh (milliampere-hours) 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.
Fast charging Non-removable 
Non-removable 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 / 1.67 A

Huawei Y9s Launch 

Launch   

Announced 

Announced 

2019, December  2019, 13th December

Status 

Status 

Release Dec. 2020 Release 31th January 2020



Huawei Y9s Price 

Galaxy A51 Price   

6 GB + 128 GB = 299$  6 GB + 128 GB =  335 $

Huawei Y9s 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.
Midnight Black Prism Crush Black
Breathing Crystal 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.
77.2 mm (millimeters)  73.6 mm 
7.72 cm (centimeters)   7.36 cm 
0.25 ft (feet)  0.24 ft 
3.04 in (inches)   2.9 in 

Height 

Height 

The vertical side of the device when it is used in its standard orientation.
163.1 mm (millimeters) 158.5 mm 
16.31 cm (centimeters) 15.85 cm 
0.54 ft (feet)  0.52 ft 
6.42 in (inches)   6.24 in 

Thickness 

Thickness 

Information about the thickness / depth of the device in different measurement units.
8.8 mm (millimeters)  7.9 mm 
0.88 cm (centimeters)   0.79 cm 
0.03 ft (feet)  0.03 ft 
0.35 in (inches)   0.31 in 

Weight 

Weight 

Information about the weight of the device in different measurement units.
206 g (grams)  172 g
0.45 lbs (pounds)  0.38 lbs
7.27 oz (ounces)  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.
110.8 cm³ (cubic centimeters)  92.16 cm3
6.73 in³ (cubic inches)   5.6 in3

Body Materials

Body Materials

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

Huawei Y9s 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

Huawei Y9s 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)
EV-DO Rev. A (1.8 Mbit/s , 3.1 Mbit/s )
TD-SCDMA
TD-HSDPA



Huawei Y9s 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 GSM 850 MHz (B5)
GSM 900 MHz GSM 900 MHz (B8)
GSM 1800 MHz GSM 1800 MHz (B3)
GSM 1900 MHz GSM 1900 MHz (B2)
CDMA
CDMA 800 MHz

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.
UMTS 850 MHz UMTS 850 MHz (B5)
UMTS 900 MHz UMTS 900 MHz (B8)
UMTS 1900 MHz UMTS 1900 MHz (B2)
UMTS 2100 MHz UMTS 2100 MHz (B1)

 TD-SCDMA

 

TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is the 3G standard developed for and used by China Mobile on the Chinese mainland.
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz

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 850 MHz LTE-FDD 850 MHz (B5)
LTE 900 MHz LTE-FDD 900 MHz (B8)
LTE 1700/2100 MHz
LTE 1800 MHz LTE-FDD 1800 MHz (B3)
LTE 2100 MHz LTE-FDD 2100 MHz (B1)
LTE 800 MHz (B19) LTE-FDD 2600 MHz (B7)
LTE-TDD 1900 MHz (B39)
LTE-TDD 2000 MHz (B34)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)

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