Oppo A31 2020 Vs Xiaomi Redmi Note 8 Specs Comparison

Xiaomi Redmi Note 8 is powered by Snapdragon 665 SoC, 4000 mAh battery, 4 GB or 6 GB RAM, 64 GB or 128 GB storage, 6.3" IPS display, quad rear camera with 48 MP main sensor + 8 MP ultra-wide lens + 2 MP depth-sensing lens + 2 MP macro lens,13 MP front camera, and 140 dollars price.

While Oppo A31 2020 keeps a 6.5" IPS screen, Helio P35 chipset, 4 GB RAM, 128 GB storage, triple rear camera with 13 MP main sensor + 2 MP depth-sensing lens + 2 MP macro lens, 8 MP front camera, 4230 mAh battery without fast charging and 190 dollars price on launch.

Here’s an in-depth specifications comparison between Oppo A31 2020 Vs Xiaomi Redmi Note 8.

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System  on  Chip (SOC)

Oppo A31 2020	Xiaomi Redmi Note 8
Brand and Model	Brand and Model
Brand	Brand
Oppo	Xiaomi
Model	Model
Model name of the device.
A31	Redmi Note 8
Model Alias	Model Alias
Аlternative names, under which the model is known.
	Redmi Note8
	Red Rice Note 8
	Red Rice Note8
	C3J
Oppo A31 Operating System (OS)	Redmi Note 8 Operating System
An operating system (OS) is the program that manages all of the other application programs in a smartphone.
ColorOS 6.1.2 (Android 9.0 Pie)	MIUI V10 (Android 9.0 Pie)

Oppo A31 System on  Chip (SOC)	Redmi Note 8 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.
MediaTek Helio P35 (MT6765V/CB)	Qualcomm Snapdragon 665
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	11 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 2.3 GHz ARM Cortex-A53	4x 2.0 GHz Kryo 260
4x 1.8 GHz ARM Cortex-A53	4x 1.8 GHz Kryo 260
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.
2300 MHz	2000 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.
PowerVR GE8320	Qualcomm Adreno 610
GPU Frequency	GPU Frequency
The frequency is the clock rate of the graphic processor (GPU).
680 MHz

Oppo A31 RAM Capacity	Redmi Note 8 RAM Capacity
RAM (Random-Access Memory) is short-term digital storage which used by the operating system and all installed applications.
4 GB	4 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	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	1866 MHz

Oppo A31 Storage	Redmi Note 8 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
	UFS 2.1
Oppo A31 Memory Cards	Redmi Note 8 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

Oppo A31 Display	Redmi Note 8 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.
6.5 in	6.3 in
165.1 mm	160.02 mm
16.51 cm	16 cm
Width	Width
Approximate inner width of the screen
2.67 in	2.64 in
67.75 mm	67.06 mm
6.78 cm	6.71 cm
Height	Height
Approximate inner height of the display
5.93 in	5.72 in
150.56 mm	145.29 mm
15.06 cm	14.53 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.
720 x 1600 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.
270 ppi (pixels per inch)	409 ppi
106 ppcm (pixels per centimeter)	160 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.
82.70%	82 %
Other Features	Other Features
Information about other functions and features of the display.
Capacitive	Capacitive
Multi-touch
Scratch resistant	Scratch resistant
62.50069444	Corning Gorilla Glass 5
480 cd/m²	2.5D curved glass screen
Oppo A31 Sensors	Redmi Note 8 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
Gyroscope
Geomagnetic
Fingerprint	Fingerprint
Gravity

Oppo A31 Rear Camera	Redmi Note 8 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.
	Samsung S5KGW2
Sensor type	Sensor type
The most common types of sensors on smartphones are CMOS, BSI, ISOCELL, etc.
	ISOCELL
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)
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/1.79
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.
4096 x 3072 pixels	8000 x 6000 Pixels
12.58 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.
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 (frames per second)	60 fps
Features	Features
Information about additional software and hardware features of the rear camera which improve its overall performance.
Autofocus	Autofocus
	Continuous shooting
	Digital zoom
	Digital 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
Macro mode	Macro
	Sensor size – 1/2.25 inch
	Pixel size- 1.6 um (4-in-1 pixel binning)
Phase detection autofocus (PDAF)	Super Phase detection
5-element lens	6-element lens
	Sensor type- ISOCELL Plus
Secondary rear camera - 2 MP (macro)	Secondary rear camera- 8 MP (ultra-wide-angle)
Aperture size - f/2.4 (#2)	Aperture- f/2.2 (#2)
	Sensor size – 1/4 inch (#2)
	Pixel size- 1.12 um (#2)
	Angle of view- 120 degree (#2)
	Focal length (35 mm equivalent)- 13 mm
Third rear camera - 2 MP (depth-sensing)	Third rear camera- 2 MP (macro)
Aperture size - f/2.4 (#3)	Aperture- f/2.4 (#2)
	Sensor size – 1/5 inch (#2)
	Pixel size- 1.75 um (#2)
	Fourth rear camera- 2 MP (depth sensor)
	Aperture- f/2.4 (#2)
	Sensor size – 1/5 inch (#2)
	Pixel size- 1.75 um (#2)

*Oppo A31 Front Camera*	Redmi Note 8 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.
	OmniVision OV13855
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.
	PureCel
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	f/2
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.
3264 x 2448 pixels	4224 x 3136 pixels
7.99 MP	13.25 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 (frames per second)	30 fps
Features	Features
Information about additional software and hardware features of the front camera which improve its overall performance.
	Face unlock
Oppo A31 Audio	Redmi Note 8 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
	Smart PA
	Stereo speakers
	Stereo speakers model- 1217S:S
Oppo A31 Radio	Redmi Note 8 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
Oppo A31 Tracking /  Positioning	Redmi Note 8 Tracking /  Positioning
Information about the positioning and navigation technologies supported by the device.
GPS	GPS
A-GPS	A-GPS
GLONASS	GLONASS
BeiDou	BeiDou
Oppo A31 Wi-Fi	Redmi Note 8 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
Oppo A31 Bluetooth	Redmi Note 8 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	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
	EDR
	HID
LE (Low Energy)	LE
Oppo A31 USB	Redmi Note 8 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.
Micro USB	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
Oppo A31 Headphone Jack	Redmi Note 8 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

Oppo A31 Connectivity	Redmi Note 8 Connectivity
Information about some of the most widely used connectivity technologies supported by the device.
Computer sync	Computer sync
Tethering	OTA sync
	Tethering
VoLTE	VoLTE
	Infrared
Oppo A31 Browser	Redmi Note 8 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
Oppo A31 Audio File Formats /  Codecs	Redmi Note 8 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+ / aaPlus / 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
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 (Waveform Audio File Format, .wav, .wave)	WAV
	LDAC
Oppo A31 Video File Formats /  Codecs	Redmi Note 8 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)
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
MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks)	MKV
MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v)	MP4
	VC-1
WebM
WMV (Windows Media Video, .wmv)
Xvid	Xvid

Oppo A31 Battery	Redmi Note 8 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.
4230 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-Ion
Features	Features
Information about some additional features of the device's battery.
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.
	9 V / 2 A
Quick Charge Technology	Quick Charge Technology
Quick charge technologies is used in devices such as mobile phones, for managing power delivered over USB, mainly by communicating to the power supply and negotiating a voltage. It offers more power and thus charges batteries in devices faster than standard USB rates allow.
	Qualcomm Quick Charge 4.0
Oppo A31 Launch	Redmi Note 8 Launch
Announced	Announced
2020, 13th Febuary	2019, August
Status	Status
Release 13th Febuary 2020	Release September 2019

Oppo A31 Price 

Price 

4 GB + 64 GB = 140 $

6 GB + 64 GB = 168 $

4 GB + 128 GB = 190 $

6 GB + 128 GB = 196 $

Oppo A31 Design 

Redmi Note 8 Design 

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

Colors 

Information about the colors, in which the device is available in the market.

Mystery Black

Meteorite Black

Fantasy White

Dream Blue

White

Certification

IP52

Width 

The horizontal side of the device when it is used in its standard orientation.

75.5 mm

 75.3 mm 

7.55 cm

  7.53 cm 

0.25 ft

2.97 in

  2.96 in 

Height 

The vertical side of the device when it is used in its standard orientation.

163.9 mm

158.3 mm 

16.39 cm

 15.83 cm 

0.54 ft

 0.52 ft 

6.45 in

  6.23 in 

Thickness 

Information about the thickness / depth of the device in different measurement units.

8.3 mm

 8.35 mm 

0.83 cm

  0.84 cm 

0.03 ft

 0.03 ft 

0.33 in

  0.33 in 

Weight 

Information about the weight of the device in different measurement units.

180 g

190 g

0.4 lbs

0.42 lbs

6.35 oz

6.7 oz

Volume 

Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped.

102.71 cm³

  99.53 cm³ 

6.24 in³

  6.04 in³ 

Body Materials

Materials used in the fabrication of the device's body.

Alumunium alloy

Plastic

Oppo A31 SIM Card 

Redmi Note 8 SIM Card 

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

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 

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

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

Oppo A31 Mobile Network Technology and Bandwidth 

Redmi Note 8 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

GPRS

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

Oppo A31 Networks

Redmi Note 8 Networks    

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

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 900 MHz (B8)

GSM 1800 MHz (B3)

GSM 1900 MHz (B2)

CDMA

CDMA 800 MHz (BC0)

CDMA 800 MHz (BC0)

W-CDMA

W-CDMA 850 MHz (B5)

W-CDMA 900 MHz (B8)

W-CDMA 1900 MHz (B2)

W-CDMA 2100 MHz (B1)

TD-SCDMA

TD-SCDMA 1880-1920 MHz

TD-SCDMA 1900 MHz

TD-SCDMA 2010-2025 MHz

TD-SCDMA 2000 MHz

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 900 MHz (B8)

LTE-FDD 1800 MHz (B3)

LTE-FDD 2100 MHz (B1)

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)