Oppo A57s vs Redmi Note 8 2021: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Oppo A57s vs Redmi Note 8 2021. The complete information of specifications to decide which to buy.

Compare
Oppo A57sOppo A57sInternational · 4GB · 64GB
Redmi Note 8 2021Redmi Note 8 2021Global · 4GB · 64GB
Technical data sheets

Basics
Oppo A57s
Oppo A57s
International · 4GB · 64GB
View datasheet
vs
Redmi Note 8 2021
Redmi Note 8 2021
Global · 4GB · 64GB
View datasheet
vs

Score
Ki Cost-effective
Score		 6.4 Ki Cost-effective
Score 		6.9 Ki Cost-effective
Score
Design and Screen score 6.0Design & Materials 5.7Design & Materials
Performance and Hardware score 5.3Performance & Hardware 5.4Performance & Hardware
Camera score 5.8Camera 6.6Camera
Connectivity score 6.1 Connectivity 6.2 Connectivity
Battery score 6.0 Battery 5.3 Battery

User reviews
User score
3.7
9 reviews
7.5
21 reviews

Technical specifications of the Oppo A57s vs Redmi Note 8 2021

Specs Oppo A57s price comparison Oppo A57s
International · 4GB · 64GB 		where to buy Redmi Note 8 2021 Redmi Note 8 2021
Global · 4GB · 64GB
Inches 6.56" 6.3"
Resolution HD+ FHD+
Usable surface 82% useful 80% useful
Aspect Ratio 20:9 19.5:9
Dimensions 75.0 mm
163.8 mm
8.0 mm 		75.3 mm
158.3 mm
8.3 mm
Weight 187 g 190 g
Micro Helio G35
Octa-Core 		Helio G85
Octa-Core
RAM 4 GB RAM 4 GB RAM
Storage 64 GB 64 GB
AnTuTu 110.000
v8 		225.154
v10
Battery 5000 mAh 4000 mAh
Main Camera 1
50 Mpx · ƒ/1.8

2 3 		1
48 Mpx · ƒ/1.79
S5KGM1
2 3 4
Selfie Camera SELF 8 Mpx · ƒ/2.0 SELF 13 Mpx · ƒ/2.0
Bands
OS Android 12 Snow Cone Android 12 Snow Cone

Brand
Brand Oppo Xiaomi
Aliases CPH2385 --

Release Date
Release date August 2022,
4 years ago 		May 2021,
5 years ago
State On Sale On Sale
Market International Global

Design & Materials

Structure

Oppo A57s
Redmi Note 8 2021
Oppo A57s
Redmi Note 8 2021
Size
75.0 mm • 163.8 mm • 8.0 mm
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 Print 3D Model
75.3 mm • 158.3 mm • 8.3 mm
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 Print 3D Model
Weight 187 g 190 g
Usable surface 82 % 80 %
Materials Plastic Plastic, P2i Nano coating, Splash resistant design
Resistance IP54 -
Colors
Black
Blue
Black
White
Blue

Screen
Diagonal 6.56" 6.3"
Type LCD IPS LTPS LCD
Aspect Ratio 20:9 19.5:9
Resolution HD+
720 x 1612 px 		FHD+
1080 x 2340 px
Brightness 480 nits 500 nits
Peak brightness -- --
Maximum brightness (HBM) 600 nits --
Density 269 Pixels per inch 409 Pixels per inch

Others

Others
  • Water Drop Notch
  • Refresh rate 120 Hz
  • 1500:1 contrast ratio
  • DCI-P3
  • 96% NTSC
  • Scratch resistant
  • 2.5D curved glass screen
  • Panda glass
  • Capacitive
  • Multi-touch
  • Frameless
  • Water Drop Notch
  • Brightnes 500 cd/m² (typ)
  • 1500:1 contrast ratio
  • Scratch resistant
  • Corning Gorilla Glass 5
  • 2.5D curved glass glass
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
4.9
7.4
Do you think it's a nice phone?
6.4
8.5
Is it comfortable?
6.3
8.0
Can you see it well in the sunlight?
4.1
6.6
Number of reviews
9 reviews
21 reviews

Performance & Hardware

Processor
Model Mediatek Helio G35 MediaTek Helio G85 (MT6769V/CZ)
CPU 8x Cortex-A53 2.3 GHz 2x Cortex-A75 2.0 GHz + 6x Cortex-A55 1.8 GHz
Type Octa-Core Octa-Core
Manufacturing 12 nm 12 nm
64 Bits Yes Yes

Graphics
GPU IMG PowerVR GE8320 680MHz Arm Mali-G52 MC2 950MHz

RAM
RAM 4 GB 4 GB
Type LPDDR4X RAM LPDDR4X RAM

Antutu
Score
110.000
Antutu v8
Overall performance better than 52% of devices
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225.154
Antutu v10
Overall performance better than 56% of devices
See more details

Storage
Capacity 64 GB 64 GB
Type eMMC 5.1 Storage eMMC 5.1 Storage
SD Slot Yes ,
Slot for SD or second SIM card 		Yes ,
Independent SD slot

Security
Fingerprint Yes, on the side Yes, in the back

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Gyroscope
  • Gravity
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope

Audio

Audio
  • Stereo Speakers
-

Others
Notifications LED -- --
Cooling system No No
Gaming buttons No No

User reviews

Does it have good sound?
7.6
7.7
Does it work smoothly in everyday use?
3.7
7.7
What's your experience been with demanding games?
1.3
6.7
Number of reviews
9 reviews
21 reviews

Camera

Main
No. of cameras Triple rear camera Quad rear camera
1
Camera type

Standard

Standard
Resolution 50 Mpx 48 Mpx
Aperture ƒ/ 1.8 ƒ/ 1.79
Optical zoom -- --
View angle -- --
Sensor Unknown Samsung S5KGM1
Type CMOS ISOCELL
ISO -- --
Pixel size -- 0.80 µm
Pixel Binning -- 1-4 (2x2)
Sensor size -- 1/2"
2
Camera type

Portrait mode (depth)

Wide Angle lens
Resolution
2 Mpx
8 Mpx
Aperture
ƒ/ 2.4
ƒ/ 2.2
Optical zoom
--
--
View angle
--
--
Sensor
Unknown
Omnivision OV8856
Type
--
PureCel
Pixel size
--
1.12 µm
Pixel Binning
--
--
Sensor size
--
1/4"
3
Camera type

Macro lens

Macro lens
Resolution
2 Mpx
2 Mpx
Aperture
ƒ/ 2.4
ƒ/ 2.4
Optical zoom
--
--
View angle
--
--
Sensor
Unknown
Unknown
Type
--
--
Pixel size
--
1.75 µm
Pixel Binning
--
--
Sensor size
--
--
4
Camera type
--

Portrait mode (depth)
Resolution
2 Mpx
Aperture
ƒ/ 2.4
Optical zoom
--
View angle
--
Sensor
Unknown
Type
--
Pixel size
1.75 µm
Pixel Binning
--
Sensor size
--

Features
Flash LED LED
Optical Stabilisation No No
Slow Motion Video Yes,
120 fps 		Yes,
120 fps
Others
  • Triple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Manual focus
  • Phase detection autofocus (PDAF)
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • 4K Video
  • Digital zoom
  • Quadruple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 8 Mpx 13 Mpx
Aperture ƒ/ 2.0 ƒ/ 2.0
Optical zoom -- --
View angle -- --
Sensor Unknown Unknown
Type -- --
Pixel size -- --
Pixel Binning -- --
Sensor size -- --
Others
--
--

DxOMark Score
DxOMark Score -- --

User reviews

Quality of daytime photos
5.3
7.5
Quality of nighttime photos
3.6
6.1
Quality of selfies
3.3
7.2
Does it have a powerful flash?
4.8
7.6
Number of reviews
9 reviews
21 reviews

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
3G
  • B1 (2100)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 5.3 LE Low energy consumption Bluetooth 5.2 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x
  • LDAC
  • SBC
  • AAC
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • QZSS
  • Galileo
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo

USB
USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • Charging
  • Host
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 -- --
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • NFC
  • Audio Jack
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Infrared
  • Tethering.
  • VoLTE

User reviews

Does it have good coverage for calls?
6.0
8.2
Quality of the GPS
5.8
8.3
And the WiFi?
4.8
8.2
Number of reviews
9 reviews
21 reviews

Battery

Battery
Capacity
5000 mAh
See more details
4000 mAh
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Type Li-Polymer Li-Polymer
Fast charge Yes,
33.0W 		Yes,
18.0W
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 13%
    Less than half day
  • 0%
    Less than a day
  • 25%
    One day
  • 63%
    More than one day
  • 0%
    Two days or more
  • 5%
    Less than half day
  • 24%
    Less than a day
  • 57%
    One day
  • 14%
    More than one day
  • 0%
    Two days or more
Number of reviews
9 reviews
21 reviews

Software

Software
Operating System
  • ColorOS 12.1 (Android 12)
    Android 12 Snow Cone, 5 years ago
  • MIUI V13 (Android 12)
    Android 12 Snow Cone, 5 years ago
Google Services With Google Mobile Services With Google Mobile Services

User reviews

Did it come with preinstalled applications?
  • 0%
    It comes with a clean operating system
  • 88%
    It has preinstalled apps but they don't bother me
  • 13%
    It has preinstalled apps that I can't uninstall
  • 0%
    It comes with a clean operating system
  • 95%
    It has preinstalled apps but they don't bother me
  • 5%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 14%
    Never
  • 14%
    Once a year
  • 57%
    Every six months
  • 14%
    Every two months or less
  • 6%
    Never
  • 11%
    Once a year
  • 61%
    Every six months
  • 22%
    Every two months or less
Number of reviews
9 reviews
21 reviews
Prices
From $ 354 --
From $ 108 --

Others

Common comparisons