Samsung Galaxy A51 vs OPPO A9 (2020)

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Display

Size

6.5 inches
6.5 inches

Resolution

2400 x 1080 pixels, 20:9 ratio,
405 PPI
720 x 1600 pixels, 20:9 ratio,
270 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

87.37 %
82.39 %

Features

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

Hardware & Performance

System chip

Samsung Exynos 9611
Qualcomm Snapdragon 665 SM6125

Processor

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm

GPU

Mali-G72 MP3
Adreno 610

RAM

4GB
4GB

Internal storage

128GB
128GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 256 GB

OS

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

Battery

Capacity

4000 mAh
5000 mAh

Type

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

Charging

Fast charging
Reverse charging

Camera

Rear

Quad camera
Quad camera

Main camera

48 MP
48 MP

Features

PDAF
PDAF

Second camera

12 MP
8 MP

Features

Ultra-wide
Ultra-wide, Autofocus

Third camera

5 MP
2 MP

Features

Macro
 

Fourth camera

5 MP
2 MP

Features

Depth information
Depth information

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)

Features

Hyperlapse, EIS
Time-lapse video, EIS

Front

32 MP
16 MP

Features

HDR
 

Design

Dimensions

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
6.44 x 2.98 x 0.36 inches (163.6 x 75.6 x 9.1 mm)

Weight

6.07 oz (172 g)
the average is 6.3 oz (179 g)
6.88 oz (195 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics

2D Face unlock, In-screen fingerprint
2D Face unlock, Fingerprint (touch)

Colors

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Space purple, Marine green, Vanilla mint

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
Bands 1(2100), 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, 1700/2100, 1900, 2100 MHz
850, 900, 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
 

Features

Dolby Atmos
Dolby Atmos

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

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

USB

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

Features

Charging, OTG
Charging, OTG

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass

Other

NFC, ANT+
 

Shopping information

In The Box

 
Adapter, Headset, Micro USB Cable, Booklet with Warranty Card, Quick Start Guide, SIM Card Tool, Protective Film (pre-applied), Case
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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