Compare Samsung Galaxy A51 VS Oppo A9 2020

Oppo A9 2020 packs with a 6.5" IPS display, Snapdragon 665 SoC, 4/8 GB RAM, 128 GB storage, 16 MP front camera, 48/8/2/2 MP quad rear camera, 5000 mAh battery, and 238 $ price.

While Samsung Galaxy A51 features with Exynos 7 Octa 9611 SoC, 4/6/8 GB RAM, 64/128 GB storage, 6.5" Super AMOLED display, 4000 mAh battery with 15 W fast charging, 48/12/5/5 MP quad rear camera and 32 MP front camera.

Here’s an in-depth specifications comparison between Oppo A9 2020 and Samsung Galaxy A51.

Jump to:

1. Operating System  Comparison
2. System  on  Chip (SOC)  Comparison
3. RAM Comparison
4. Storage  Comparison
5. Display Comparison
6. Launch Date Comparison
7. Price  Comparison
8. Sensors  Comparison
9. Rear Camera Comparison
10. Front Camera Comparison
11. Tracking /  Positioning  Comparison
12. Wi-Fi  Comparison
13. Bluetooth  Comparison
14. USB Comparison
15. Connectivity  Comparison
16. Audio File Formats /  Codecs Comparison
17. Video File Formats /  Codecs Comparison
18. Battery  Comparison
19. Design  Comparison 
20. SIM Card  Comparison
21. Networks  Comparison
22. Mobile Network Technology and Bandwidth Comparison

Samsung Galaxy A51	Oppo A9 2020
Brand and Model	Brand and Model
Brand	Brand
Samsung	Oppo
Model	Model
Galaxy A51	A9 2020
Galaxy A51 Operating System	Oppo A9 2020 Operating System (OS)
Android 10	ColorOS 6.0.1 (Android 9.0 Pie)
User Interface (UI)	User Interface (UI)
One UI 2.0
Galaxy A51 System on  Chip (SOC)	Oppo A9 2020 System on  Chip (SOC)
SOC	SOC
Samsung Exynos 7 Octa 9611	Qualcomm Snapdragon 665
Process Technology	Process Technology
10 nm	11 nm
CPU	CPU
4x 2.3 GHz ARM Cortex-A73	4x 2.2 GHz Kryo 260
4x 1.7 GHz ARM Cortex-A53	4x 1.8 GHz Kryo 260
CPU Bits	CPU Bits
64 bits	64 bits
Instruction Set	Instruction Set
ARMv8-A	ARMv8
CPU Frequency	CPU Frequency
2300 MHz	2000 MHz
CPU Cores	CPU Cores
8	8
GPU	GPU
ARM Mali-G72 MP3	Qualcomm Adreno 610
GPU Cores	GPU Cores
3
Galaxy A51 RAM Capacity	Oppo A9 2020 RAM Capacity
4 GB	4 GB
6 GB
8 GB	8 GB
RAM Type	RAM Type
LPDDR4X	LPDDR4X
RAM Channels	RAM Channels
Double channel	Double Channel
RAM Frequency	RAM Frequency
	1866 MHz
Other Features	Other Features
	Game Boost 2.0
Galaxy A51 Storage	Oppo A9 2020 Storage
64 GB
128 GB	128 GB
	UFS 2.1
Galaxy A51 Memory Cards	Oppo A9 2020 Memory Cards
microSD	microSD
microSDHC	microSDHC
microSDXC	microSDXC
Galaxy A51 Display	Oppo A9 2020 Display
Type / Technology	Type / Technology
Super AMOLED	IPS
Diagonal Size	Diagonal Size
6.5 in	6.5 in
165.1 mm	165.1 mm
16.51 cm	16.51 cm
Width	Width
2.72 in	2.67 in
69.19 mm	67.75 mm
6.92 cm	6.78 cm
Height	Height
5.9 in	5.93 in
149.9 mm	150.56 mm
14.99 cm	15.06 cm
Aspect Ratio	Aspect Ratio
2.167:1	2.222:1
Resolution	Resolution
1080 x 2340 pixels	720 x 1600  pixels
Pixel Density	Pixel Density
396 ppi	270 ppi
155 ppcm	106 ppcm
Color Depth	Color Depth
24 bits	24 bits
16777216 colors	16777216 colors
Display Area	Display Area
89.19 %	82.74 %
Other Features	Other Features
Capacitive	Capacitive
Multi-touch	Multi-touch
Scratch resistant
	2.5D curved glass screen
	in-cell
	1500:1 contrast ratio
	480 cd/m square brightness
Galaxy A51 Sensors	Oppo A9 2020 Sensors
Proximity	Proximity
Light	Light
Accelerometer	Accelerometer
Compass	Compass
Gyroscope	Gyroscope
Fingerprint	Fingerprint
	Geomagnetic
In-display fingerprint sensor
Galaxy A51 Rear Camera	Oppo A9 2020 Rear Camera
Sensor Model	Sensor Model
Samsung S5KGM2
Sensor type	Sensor type
ISOCELL	CMOS
Aperture	Aperture
f/2	f/1.8
Flash Type	Flash Type
LED	Dual LED
Image Resolution	Image Resolution
8000 x 6000 pixels	8000 x 6000  pixels
48 MP	48 MP
Video resolution	Video resolution
1920 x 1080 pixels	3840 x 2160 pixels
2.07 MP	8.29 MP
Video FPS	Video FPS
30 fps	30 fps
Features	Features
Autofocus	Autofocus
Continuous shooting
Digital zoom	Digital zoom
Digital image stabilization	Digital image stabilization
Geotagging	Geotagging
Panorama	Panorama
HDR	HDR
Touch focus	Touch focus
Face detection	Face detection
White balance setting	White balance setting
ISO setting	ISO setting
Exposure compensation	Exposure compensation
Self-timer	Self-timer
Scene mode	Scene mode
	Night Mode
Sensor size-1/2.25”	Sensor size-1/2.25”
Pixel size- 1.6 um (4-in-1 pixel binning)	Pixel size- 1.6 um (4-in-1 pixel binning)
Sensor type- ISOCELL Plus
Super Phase Detection	Phase detection
6-element lens	Ultra Night Light Mode 2.0
PDAF
Secondary rear camera - 12 MP (ultra-wide)	Secondary rear camera- 8 MP (ultra-wide)
	Sensor size- 1/4” (#2)
Pixel size- 1.12 um (#2)	Pixel size- 1.12 um (#2)
	5-element lens (#2)
Aperture size - f/2.2 (#2)	Aperture size- f/2.2 (#2)
	Angle of view- 119 degree (#2)
Third rear camera - 5 MP (depth-sensing)	Third rear camera- 2 MP depth-sensing)
Aperture size - f/1.12 (#3)	Aperture size- f/2.4 (#3)
	Sensor size- 1/5” (#3)
	Pixel size- 1.75 um (#3)
Fourth Rear Camera-5 MP (Macro)	Fourth rear camera- 2 MP (macro)
	Sensor size- 1/5” (#4)
	Pixel size- 1.75 um (#4)
Aperture size- f/2.4 (#4)	Aperture- f/2.4 (#4)
Galaxy A51 Front Camera	Oppo A9 2020 Front Camera
Sensor Model	Sensor Model
Samsung S5KGD1	Samsung S5K3P8
Sensor Type	Sensor Type
ISOCELL	ISOCELL
Aperture	Aperture
f/2.2	f/2
Image Resolution	Image Resolution
6560 x 4928 pixels	4640 x 3488 pixels
32.33 MP	16.18 MP
Video Resolution	Video Resolution
1920 x 1080 pixels	1920 x 1080 pixels
2.07 MP	2.07 MP
Video FPS	Video FPS
30 fps	30 fps
Features	Features
Sensor size-1/2.8”	Sensor size- 1/3.1”
Pixel size- 0.8 um	Pixel size- 1.0 um
Sensor type- ISOCELL
Face unlock	Face unlock
Galaxy A51 Audio	Oppo A9 2020 Audio
Loudspeaker	Loudspeaker
Earpiece	Earpiece
	Stereo speakers
	Dolby Atmos
Galaxy A51 Radio	Oppo A9 2020 Radio
Yes	Yes
Galaxy A51 Tracking /  Positioning	Oppo A9 2020 Tracking /  Positioning
GPS	GPS
A-GPS	A-GPS
GLONASS	GLONASS
BeiDou	BeiDou
Galileo	Galileo
Galaxy A51 Wi-Fi	Oppo A9 2020 Wi-Fi
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-1999)	802.11g (IEEE 802.11g-2003)
802.11n (IEEE 802.11n-2003)	802.11n (IEEE 802.11n-2009)
802.11n 5GHz	802.11n 5GHz
802.11ac (IEEE 802.11ac)	802.11 ac (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
Galaxy A51 Bluetooth	Oppo A9 2020 Bluetooth
Version	Version
5.0	5.0
Features	Features
A2DP	A2DP
AVRCP
DIP
HFP
HID
HSP
	LE
MAP
OPP
PAN
PBAP/PAB
HOGP
Galaxy A51 USB	Oppo A9 2020 USB
Connector Type	Connector Type
USB Type-C	Micro USB
Version	Version
2.0	2.0
Features	Features
Charging	Charging
Mass Storage	Mass Storage
On-The-Go	On-The-Go
Galaxy A51 Headphone Jack	Oppo A9 2020 Headphone Jack
Yes	Yes
Galaxy A51 Connectivity	Oppo A9 2020 Connectivity
Computer sync	Computer sync
OTA sync	OTA sync
Tethering	Tethering
VoLTE	VoLTE
ANT+
Galaxy A51 Browser	Oppo A9 2020 Browser
HTML	HTML
HTML5	HTML5
CSS 3	CSS 3
Galaxy A51 Audio File Formats /  Codecs	Oppo A9 2020 Audio File Formats /  Codecs
AAC	AAC
	AAC+ / aaPlus / HE-AAC v1
AMR / AMR-NB / GSM-AMR	AMR / AMR-NB / GSM-AMR
AMR-WB	AMR-WB
eAAC+ / aacPlus v2 / HE-AAC v2	eAAC+ / aacPlus v2 / HE-AAC v2
FLAC	FLAC
M4A
MIDI	MIDI
	MP3
OGG	OGG
WMA	WMA
WAV	WAV
	LDAC
Galaxy A51 Video File Formats /  Codecs	Oppo A9 2020 Video File Formats /  Codecs
3GPP	3GPP
3GPP2
AVI	AVI
DivX	DivX
Flash Video
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	H.265 / MPEG-H Part 2 / HEVC
MP4	MP4
MKV	MKV
VC-1	VC-1
VP8
VP9
WebM
WMV
WMV7
WMV8
Xvid	Xvid
Galaxy A51 Battery	Oppo A9 2020 Battery
Capacity	Capacity
4000 mAh	5000 mAh
Type	Type
Li-Polymer	Li-Polymer
Features	Features
Non-removable	Non-removable
Fast charging	Fast charging
	Wireless charging
	HD video playback- up to 11hrs
Charger Output Power	Charger Output Power
5 V / 2 A
9 V / 1.67 A
Launch	Oppo A9 2020 Launch
Announced	Announced
2019, 13th December	2019, Sept.
Status	Status
Release December 2019	Release Sept. 2019
Galaxy A51 Price	Oppo A9 2020 Price
-	4 GB + 128 GB = 238 $
	8 GB + 128 GB = 280 $
Galaxy A51 Design	Oppo A9 2020 Design
Colors	Colors
Prism Crush Black	Space Purple
Prism Crush Blue	Marine Green
Prism Crush Pink
Prism Crush White
Width	Width
73.6 mm	75.6 mm
7.36 cm	7.56 cm
0.24 ft	0.25 ft
2.9 in	2.98 in
Height	Height
158.5 mm	163.6 mm
15.85 cm	16.36 cm
0.52 ft	0.54 ft
6.24 in	6.44 in
Thickness	Thickness
7.9 mm	9.1 mm
0.79 cm	0.91 cm
0.03 ft	0.03 ft
0.31 in	0.36 in
Weight	Weight
172 g	195 g
0.38 lbs	0.43 lbs
6.07 oz	6.88 oz
Volume	Volume
92.16 cm3	112.55 cm3
5.6 in3	6.84 in3
Body Materials	Body Materials
Plastic	Plastic
Galaxy A51 SIM Card	Oppo A9 2020 SIM Card
SIM Card Type	SIM Card Type
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)
Number of SIM Cards	Number of SIM Cards
2	2
Features	Features
Dual SIM stand-by	Dual SIM stand-by
Galaxy A51 Mobile Network Technology and Bandwidth	Oppo A9 2020 Mobile Network Technology and Bandwidth
UMTS (384 kbit/s)	UMTS (384 kbit/s)
EDGE	EDGE
GPRS	GPRS
HSPA+	HSPA+
LTE Cat 12 (102.0 Mbit/s, 603.0 Mbit/s)	LTE Cat 12 (102.0 Mbit/s, 603.0 Mbit/s)
Galaxy A51 Networks	Oppo A9 2020 Networks
GSM	GSM
GSM 850 MHz (B5)	GSM 850 MHz (B5)
GSM 900 MHz (B8)	GSM 900 MHz (B8)
GSM 1800 MHz (B3)	GSM 1800 MHz (B3)
GSM 1900 MHz (B2)	GSM 1900 MHz (B2)
UMTS	W-CDMA
UMTS 850 MHz (B5)	W-CDMA 850 MHz (B5)
UMTS 900 MHz (B8)	W-CDMA 900 MHz (B8)
UMTS 1900 MHz (B2)
UMTS 2100 MHz (B1)	W-CDMA 2100 MHz (B1)
LTE	LTE
LTE-FDD 850 MHz (B5)	LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)	LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)	LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)	LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
	LTE-TDD 2300 MHz (B40)
	LTE-TDD 2500 MHz (B41)
	LTE-TDD 2600 MHz (B38)