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Samsung Galaxy M21 vs OPPO A9 (2020) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

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Specs Size
Differences only
Samsung Galaxy M21
OPPO A9 (2020)
Samsung Galaxy M21 OPPO A9 (2020)
Released · Mar 23, 2020
Released · Sep 11, 2019
6.4-inch · 2340x1080px
6.5-inch · 720x1600px
Triple camera
Quad camera
4GB · 64GB
4GB · 128GB
6000 mAh
5000 mAh
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Availability

Officially announced
Mar 18, 2020

Design

Dimensions
6.26 x 2.96 x 0.35 inches
159.0 x 75.1 x 8.9 mm 		6.44 x 2.98 x 0.36 inches
163.6 x 75.6 x 9.1 mm
Weight
6.63 oz / 188.0 g 6.88 oz / 195.0 g
Materials
Back: Plastic
Frame: Plastic 		Back: Plastic
Frame: Plastic
Biometrics
2D Face unlock, Fingerprint (touch) 2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Left: Volume control; Right: Lock/Unlock key
Colors
Midnight blue, Raven black Space purple, Marine green, Vanilla mint

Display

Size
6.4-inch, 84.11% screen-to-body 6.5-inch, 82.39% screen-to-body
Type
Super AMOLED, 420 nits IPS LCD
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI 720x1600px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 3 Corning Gorilla Glass 3
Features
Scratch-resistant glass, Proximity sensor

Hardware

System chip
Exynos 9611 (10 nm) Snapdragon 665 SM6125 (11 nm)
Processor
Octa-core
4x2.3GHz Cortex-A73
4x1.7G​Hz Cortex-A53 		Octa-core
2000 MHz
Kryo 260
GPU
Mali-G72 MP3 Adreno 610
Memory
4GB (LPDDR4)/64GB
6GB/128GB 		4GB (LPDDR4)/128GB
8GB/128GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 256 GB
OS
Android (11, 10) Android (10, 9.0 Pie)

Battery

Type
6000 mAh, Li - Polymer 5000 mAh, Li - Polymer
Charging
Fast charging Reverse wired charging

Camera

Rear
Triple camera Quad camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm 		48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2.3"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 12 mm
Sensor size: 1/4"
Pixel size: 1.12 μm 		8 MP (Ultra-wide, Autofocus)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
5 MP (Depth information)
Aperture size: F2.2 		2 MP
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
Fourth camera
2 MP (Depth information)
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.75 μm
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p, 720p (240 fps)
EIS 		4K UHD (30 fps), 1080p (30 fps)
Time-lapse video, EIS
Front
20 MP (HDR)
Video capture: 1080p 		16 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac 		b,g,n
Wi-Fi Direct, Hotspot
802.11 b, g, n
USB
Type-C, USB 2.0 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Multimedia

Headphones
3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
Dolby Atmos Dolby Atmos
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM

Cellular

4G (FDD) Bands
1, 3, 5, 7, 8, 20 1, 3, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 40, 41 38, 40, 41
3G Bands
1, 2, 5, 8 5, 8, 1
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Alternative variants

with 128GB storage
Memory 6GB/128GB
with 8GB RAM
Memory 8GB
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