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)