Samsung Galaxy A51 vs LG Optimus 4X HD comparison

Show Only Differences Highlight Differences	Samsung Galaxy A51	LG Optimus 4X HD
ratings
Overall NDTV Rating	Read Review	Read Review
Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display	6.50-inch	4.70-inch
Front Camera	32-megapixel	1.3-megapixel
Rear Camera	48-megapixel + 12-megapixel + 5-megapixel + 5-megapixel	8-megapixel
RAM	6GB	1GB
Storage	128GB	16GB
Battery Capacity	4000mAh	2150mAh
OS	Android 10	Android 4.0
Resolution	1080x2400 pixels	720x1280 pixels
Processor	-	Nvidia Tegra 3
general
Brand	Samsung	LG
Model	Galaxy A51	Optimus 4X HD
Release date	January 1, 2020	July 1, 2012
Launched in India	Yes	-
Form factor	Touchscreen	Bar
Dimensions (mm)	158.50 x 73.60 x 7.90	132.40 x 68.10 x 8.90
Weight (g)	172.00	140.00
Battery capacity (mAh)	4000	2150
Fast charging	Proprietary	-
Colours	Prism Crush Blue, Prism Crush Black, Prism Crush Pink, Prism Crush White	-
Alternate names	-	P880
Removable battery	-	No
display
Screen size (inches)	6.50	4.70
Touchscreen	Yes	Yes
Resolution	1080x2400 pixels	720x1280 pixels
Pixels per inch (PPI)	-	312
hardware
Processor make	Samsung Exynos 9611	Nvidia Tegra 3
RAM	6GB	1GB
Internal storage	128GB	16GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	512	64
Dedicated microSD slot	Yes	-
Processor	-	1.5GHz quad-core
camera
Rear camera	48-megapixel (f/2.0) + 12-megapixel (f/2.2) + 5-megapixel (f/2.2) + 5-megapixel (f/2.4)	8-megapixel
Front camera	32-megapixel (f/2.2)	1.3-megapixel
Rear flash	-	LED
software
Operating system	Android 10	Android 4.0
Skin	One UI 2.0	-
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 ac	802.11 a/b/n
GPS	Yes	Yes
Bluetooth	Yes, v 5.00	Yes, v 4.00
NFC	Yes	Yes
USB OTG	Yes	No
USB Type-C	Yes	-
Headphones	3.5mm	3.5mm
FM	Yes	Yes
Number of SIMs	2	1
Wi-Fi Direct	Yes	Yes
Active 4G on both SIM cards	Yes	-
Infrared	-	No
Mobile High-Definition Link (MHL)	-	Yes
sim 1
SIM Type	Nano-SIM	Regular
GSM/CDMA	GSM	GSM
3G	Yes	Yes
4G/ LTE	Yes	No
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	Yes	-
sensors
Face unlock	Yes	-
Fingerprint sensor	Yes	-
In-Display Fingerprint Sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	No
Gyroscope	Yes	Yes
Barometer	-	No
Temperature sensor	-	No

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