Samsung Galaxy A18 4G vs Samsung Galaxy S21 Ultra comparison

Show Only Differences Highlight Differences	Samsung Galaxy A18 4G	Samsung Galaxy S21 Ultra
key specs
Display	6.70-inch	6.80-inch
Processor	Samsung Exynos 1610	Samsung Exynos 2100
Front Camera	13-megapixel	40-megapixel
Rear Camera	50-megapixel + 5-megapixel + 2-megapixel	108-megapixel + 12-megapixel + 10-megapixel + 10-megapixel
RAM	4GB	12GB, 16GB
Storage	128GB	128GB, 256GB, 512GB
Battery Capacity	5000mAh	5000mAh
OS	Android 17	Android 11
Resolution	2340x1080 pixels	1440x3220 pixels
general
Brand	Samsung	Samsung
Model	Galaxy A18 4G	Galaxy S21 Ultra
Release date	September 15, 2026	January 14, 2021
AI Enabled	Yes	-
Launched in India	No	-
Form factor	Touchscreen	Touchscreen
Dimensions (mm)	164.40 x 77.90 x 7.70	165.10 x 75.60 x 8.90
Weight (g)	196.00	228.00
IP rating	IP64	IP68
Battery capacity (mAh)	5000	5000
Removable battery	No	-
Fast charging	25W Fast Charging	Proprietary
Colours	Black, Grey, Light Blue	Phantom Titanium, Phantom Navy, Phantom Brown
Wireless charging	-	Yes
display
Refresh Rate	90 Hz	-
Resolution Standard	FHD+	-
Screen size (inches)	6.70	6.80
Touchscreen	Yes	Yes
Resolution	2340x1080 pixels	1440x3220 pixels
Protection type	-	Gorilla Glass
Pixels per inch (PPI)	-	515
hardware
Processor	octa-core	2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz)
Processor make	Samsung Exynos 1610	Samsung Exynos 2100
RAM	4GB	12GB, 16GB
Internal storage	128GB	128GB, 256GB, 512GB
Expandable storage	Yes	-
Expandable storage type	microSD	-
Expandable storage up to (GB)	2000	-
Dedicated microSD slot	No	-
camera
Rear camera	50-megapixel (f/1.8) + 5-megapixel (f/2.2) + 2-megapixel (f/2.4)	108-megapixel (f/1.8, 0.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 10-megapixel (f/2.4, 1.22-micron) + 10-megapixel (f/4.9, 1.22-micron)
No. of Rear Cameras	3	-
Rear flash	Yes	Yes
Front camera	13-megapixel (f/2.0)	40-megapixel (f/2.2, 0.7-micron)
No. of Front Cameras	1	-
Rear autofocus	-	Laser autofocus
software
Operating system	Android 17	Android 11
Skin	One UI 9	One UI 3.1
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	802.11 a/b/g/n/ac/ax
GPS	Yes	Yes
Bluetooth	Yes, v 5.30	Yes, v 5.00
NFC	Yes	Yes
USB Type-C	Yes	Yes
Headphones	Type-C	-
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	-
sim 1
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
5G	-	Yes
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Face unlock	-	Yes
In-Display Fingerprint Sensor	-	Yes
Barometer	-	Yes
ratings
Overall NDTV Rating	-	Read Review
Design Rating	-
Display Rating	-
Software Rating	-
Performance Rating	-
Battery Life Rating	-
Camera Rating	-
Value for Money Rating	-

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