Vivo Z6 5G Vs Xiaomi Redmi K30 5G Specs Comparison


Xiaom Redmi K30 5G packs with Snapdragon 765G SoC, 6 GB or 8 GB RAM, 64 GB or 128 GB or 256 GB storage, 6.67" Super AMOLED display with a 120 Hz screen refresh rate, 4500 mAh battery with 30 W fast charging, quad rear camera with 64 MP main sensor + 8 MP ultra-wide lens + 5 MP for depth-sensing + 2 MP macro lens, dual front camera with 20 MP main + 2 MP for depth-sensing and 
285 dollars price on launch,.

While Vivo Z6 5G is equipped with Snapdragon 765G chipset, 6 GB or 8 GB RAM, 128 GB storage, 6.57" IPS screen, 5000 mAh battery with 44W fast charging, quad rear camera with 48 MP main sensor + 8 MP ultra-wide lens + 2 MP depth-sensor lens + 2 MP macro lens, 16 MP front camera, and 330 $ price.



Here’s an in-depth specifications comparison Vivo Z6 5G Vs Xiaomi Redmi K30 5G.

Jump to:
  1. System  on  Chip (SOC)
  2. RAM
  3. Storage
  4. Display
  5. Rear Camera 
  6. Front Camera
  7. Battery
  8. Price  
  9. Network



Vivo Z6 5G

Xiaomi Redmi K30 5G

Brand and Model   

Brand and Model 

Brand 

Brand 

Vivo
  Xiaomi

Model

Model 

Model name of the device.
Z6
 Redmi K30 5G

Vivo Z6 Operating System 

Redmi K30 5G Operating System (OS)

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



Vivo Z6 System on  Chip (SOC)

Redmi K30 5G 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 765G Qualcomm Snapdragon 765G

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.
7 nm 7 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.
1x 2.4 GHz Kryo 475 1x 2.4 GHz Kryo 475
1x 2.42 GHz Kryo 475 1x 2.2 Ghz Kryo 475
6x 1.8 GHz Kryo 475  6x 1.8 Ghz Kryo 475

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

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.
2400 MHz  2400 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 620 Qualcomm Adreno 620



Vivo Z6 RAM Capacity

Redmi K30 5G RAM Capacity 

RAM (Random-Access Memory) is short-term digital storage which used by the operating system and all installed applications.
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  2133 MHz

Other Features 

Other Features

Multi Turbo 3.0 Game Turbo 2.0
Liquid cooling system  MI Turbo



Vivo Z6 Storage

Redmi K30 5G 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
128 GB   128 GB

 256 GB
UFS 2.1  UFS 2.1

Vivo Z6 Memory Cards

Redmi K30 5G 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



Vivo Z6 Display

Redmi K30 5G 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 IPS

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.
6.57 in 6.67 in 
166.88 mm 169.42 mm 
16.69 cm 16.91 cm 

Width 

Width 

Approximate inner width of the screen
2.7 in 2.74 in 
68.48 mm   69.52 mm 
6.85 cm   6.95 cm 

Height 

Height 

Approximate inner height of the display
5.99 in   6.08 in 
152.18 mm   154.5 mm 
15.22 cm   15.45 cm 

Aspect Ratio 

Aspect Ratio 

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

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 2400 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.
401 ppi (pixels per inch)   395 ppi 
157 ppcm (pixels per centimeter)   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 bit   24 bits  
16777216 colors   16777216 colors 

Display Area 

Display Area 

The estimated percentage of smartphone display area.
84.21%   85.1 % 

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
62.50069444 2.5D curved glass screen 
Oleophobic coating
120Hz sampling rate
HDR10
81.5% NTSC  TUV Rheinland Low Light Blue Certification

Vivo Z6 Sensors

Redmi K30 5G 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  Gravity
 Pedometer
Side-mounted fingerprint sensor
 Geomagnetic



Vivo Z6 Rear Camera

Redmi K30 5G 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

Sensor type 

Sensor type 

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

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" 1/1.7”

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 (micrometers) 0.8 µm (micrometers)

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/1.79  f/1.89

Number of Lenses

Number of Lenses

6

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 Dual 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 9248 x 6944 pixels
48 MP  64.22 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  3840 x 2160 pixels
8.29 MP  8.29 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 
 Continuous autofocus
Optical image stabilization
Digital image stabilization  Digital image stabilization
Geotagging Geo tagging 
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
Macro mode
Phase detection autofocus (PDAF) Phase Detection
Pixel size - 1.6 μm (4-in-1 pixel binning) Pixel size-1.6 um (4-in-1 pixel binning)
1080p @ 120 fps  1080p @ 120 fps
720p @ 240 fps  720p @ 960 fps
 Angle of view- 79 degree
10x digital zoom

Secondary rear camera - 8 MP (ultra-wide)

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

Sensor size - 1/5" (#3)
Pixel size - 1.75 μm (#3) Pixel size- 1.12 um (#2)
Angle of view - 112° (#3) Angle of view- 120 degree (#2)
Aperture size - f/2.2 (#3)  Aperture size- f/2.2 (#2)

Third rear camera - 2 MP (depth-sensing)

Third rear camera- 2 MP (depth-sensing)

Sensor size - 1/5" (#3)  Sensor size- 1/5” (#3)
Pixel size - 1.75 μm (#43)  Pixel size- 1.75 um (#3)
Aperture size - f/2.4 (#3)  Aperture size- f/2.4 (#3)
4 cm shooting distance (#3)
 Angle of view- 83 degree (#3)

Third rear camera - 2 MP macro

 Fourth rear camera- 5 MP (macro)
 Sensor size- 1/5” (#4)
 Pixel size- 1.75 um (#4)
Aperture size - f/2.4 (#4) Aperture size- f/2.4 (#4)
 Angle of view- 83 degree (#4)



Vivo Z6 Front Camera

Redmi K30 5G 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.
Sony IMX616

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/2.48

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.
4640 x 3456 pixels  5963 x 3354 pixels 
16.04 MP   20 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.
Face unlock
Pixel size- 0.8 um
Angle of view- 78 degree

 

 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)

Vivo Z6 Audio

Redmi K30 5G 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 

Vivo Z6 Radio

Redmi K30 5G 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

Vivo Z6 Tracking /  Positioning 

Redmi K30 5G Tracking /  Positioning 

Information about the positioning and navigation technologies supported by the device.
GPS  GPS (L1+L5)
A-GPS  A-GPS 
GLONASS GLONASS (G1)
BeiDou  BeiDou (B1+B2a)
Galileo  Galileo (E1+E5a)
 QZSS (L1+L5)



Vivo Z6 Wi-Fi

Redmi K30 5G 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-2003)
802.11n (IEEE 802.11n-2009)  802.11n (IEEE 802.11n-2009) 
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
Link Boost

Vivo Z6 Bluetooth

Redmi K30 5G 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.
5.1  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 (Advanced Audio Distribution Profile) A2DP 
LE (Low Energy) LE

Vivo Z6 USB

Redmi K30 5G 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

Vivo Z6 Headphone Jack

Redmi K30 5G 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

Vivo Z6 Connectivity

Redmi K30 5G Connectivity 

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

Vivo Z6 Browser

Redmi K30 5G 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 

Vivo Z6 Audio File Formats /  Codecs

   Redmi K30 5G 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 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 / apt-X
aptX HD / apt-X HD / aptX Lossless  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) MP3 
OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus) OGG 
WMA (Windows Media Audio, .wma) WMA 
WAV. LDAC. TWS+  WAV 
SBC

Vivo Z6 Video File Formats /  Codecs

Redmi K30 5G 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 
AVI (Audio Video Interleaved, .avi) AVI 
DivX (.avi, .divx, .mkv) DivX
Flash Video (.flv, .f4v, .f4p, .f4a, .f4b)  Flash Video
H.263 H.263
H.264 / MPEG-4 Part 10 / AVC video H.264 / MPEG-4 Part 10 / AVC video
MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks) MKV
MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v) MP4
WebM  WebM
WMV (Windows Media Video, .wmv)  WMV
Xvid Xvid



Vivo Z6 Battery

Redmi K30 5G 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.
5000 mAh 4500 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
44W fast charging

 Charger Output Power

Charger Output Power

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

Vivo Z6 Launch

Redmi K30 5G Launch 

Announced 

Announced 

 2020, 28th February  2019, 10th Dec.

Status

Status 

Release 29th February 2020  Release 12th Dec. 2019



Vivo Z6 Price

Redmi K30 5G Price 

6 GB + 64 GB = 285 $ 
6 GB + 128 GB =  330 $ 6 GB + 128 GB = 325 $
8 GB + 128 GB =  373 $  8 GB + 128 GB = 370 $
 8 GB + 256 GB = 410 $

Vivo Z6 Design

Redmi K30 5G 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.
Glacial Age White
Interstellar Silver Blue
Purple
Fuchsia

Width 

Width 

The horizontal side of the device when it is used in its standard orientation.
75.71 mm   76.6 mm 
7.57 cm   7.66 cm 
0.25 ft   0.25 ft 
2.98 in   3.02 in 

Height 

Height 

The vertical side of the device when it is used in its standard orientation.
163.99 mm  165.3 mm 
16.4 cm  16.53 cm 
0.54 ft   0.54 ft 
6.46 in   6.51 in 

Thickness 

Thickness 

Information about the thickness / depth of the device in different measurement units.
9.16 mm   8.79 mm 
0.92 cm   0.88 cm 
0.03 ft   0.03 ft 
0.36 in   0.35 in 

Weight 

Weight 

Information about the weight of the device in different measurement units.
201 g   208 g
0.44 lbs   0.46 lbs
7.09 oz   7.34 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.
113.73 cm³   111.3 cm3
6.91 in³   6.76 in3

Body Materials

Body Materials

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

Vivo Z6 SIM Card

Redmi K30 5G 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  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 (Both cards are active. When one is busy, the other is not active) Dual SIM stand-by 

Vivo Z6 Mobile Network Technology and Bandwidth

Redmi K30 5G 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) 
EDGE  EDGE 
GPRS  GPRS  
HSPA+  HSPA+ 
LTE LTE
TD-SCDMA TD-SCDMA
5G NSA  NSA
5G SA  SA
Snapdragon X52 modem  Snapdragon NSA and SA bands- n78; n41



Vivo Z6 Networks

Redmi K30 5G 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)

CDMA

 CDMA

CDMA 800 MHz (BC0)  CDMA 800 MHz (BC0)

W-CDMA

W-CDMA

W-CDMA 850 MHz (B5) W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8) W-CDMA 900 MHz (B8)
W-CDMA 1700 MHz (B4)
W-CDMA 2100 MHz (B1)  W-CDMA 2100 MHz (B1)

 TD-SCDMA

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 1880-1920 MHz 
TD-SCDMA 2010-2025 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-FDD 850 MHz (B5) LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8) LTE-FDD 900 MHz (B8)
LTE-FDD 1700 MHz (B4)
LTE-FDD 1800 MHz (B3) LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1) LTE-FDD 2100 MHz (B1)
LTE-TDD 1900 MHz (B39) LTE-TDD 1900 MHz (B39)
LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40)
LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41)
LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38)
LTE-TDD 2600 MHz (B38)

5G

 5G

5G-FDD 1800 MHz (n3)
5G-FDD 2100 MHz (n1)
5G-TDD 2500 MHz (n41) 5G-TDD 2500 MHz (n41)
5G-TDD 3500 MHz (n78 5G-TDD 3500 MHz (n78
5G-TDD 3700 MHz (n77

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