OPPO A9 (2020) vs Samsung Galaxy A21s

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Display

Size

6.5 inches
6.5 inches

Resolution

720 x 1600 pixels, 20:9 ratio,
270 PPI
1600 x 720 pixels, 20:9 ratio,
270 PPI

Technology

IPS LCD
TFT

Screen-to-body

82.39 %
82.94 %

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Proximity sensor

Hardware

System chip

Qualcomm Snapdragon 665 SM6125
Samsung Exynos 850

Processor

Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU

Adreno 610
Mali-G76

RAM

4GB LPDDR4
3GB LPDDR4

Internal storage

128GB
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

Android (10, 9.0 Pie), OPPO ColorOS UI
Android (10), Samsung One UI

Battery

Capacity

5000 mAh
5000 mAh

Type

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging

Reverse charging
Fast charging

Camera

Rear

Quad camera
Quad camera

Main camera

48 MP (PDAF)
48 MP (PDAF)

Specifications

Aperture size: F1.8; Sensor size: 1/2.3"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

8 MP (Ultra-wide, Autofocus)
8 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera

2 MP
2 MP (Macro)

Specifications

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4

Fourth camera

2 MP (Depth information)
2 MP (Depth information)

Specifications

Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm
Aperture size: F2.4

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features

Time-lapse video, EIS
 

Front

16 MP
13 MP

Design

Dimensions

6.44 x 2.98 x 0.36 inches (163.6 x 75.6 x 9.1 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight

6.88 oz (195.0 g)
the average is 6.2 oz (178 g)
6.77 oz (192.0 g)
the average is 6.2 oz (178 g)

Materials

Back: Plastic; Frame: Plastic
 

Biometrics

2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Colors

Space purple, Marine green, Vanilla mint
Black, White, Blue, Red

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 2100 MHz
850, 900, 1900, 2100 MHz

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

Multimedia

Headphones

 
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

Dolby Atmos
 

Screen mirroring

Wireless screen share
Wireless screen share

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 b, g, n; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features

Charging, OTG
Charging

Location

GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope

Other

 
NFC

Buyers information

In The Box

Adapter, Headset, Micro USB Cable, Booklet with Warranty Card, Quick Start Guide, SIM Card Tool, Protective Film (pre-applied), Case
 
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