Redmi A4 5G vs Samsung Galaxy A21 comparison

Show Only Differences Highlight Differences	Redmi A4 5G	Samsung Galaxy A21s
key specs
Display	6.88-inch	6.50-inch
Processor	Qualcomm Snapdragon 4s Gen 2	Samsung Exynos 850
Front Camera	5-megapixel	13-megapixel
Rear Camera	50-megapixel + Unspecified	48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel
RAM	4GB	4GB
Storage	64GB, 128GB	64GB
Battery Capacity	5160mAh	5000mAh
OS	Android 14	Android 10
Resolution	720x1640 pixels	720x1600 pixels
general
Brand	Redmi	Samsung
Model	A4 5G	Galaxy A21s
Release date	November 20, 2024	May 15, 2020
Launched in India	Yes	Yes
Dimensions (mm)	171.88 x 77.80 x 8.22	163.60 x 75.30 x 8.90
Weight (g)	212.35	191.00
IP rating	IP52	-
Battery capacity (mAh)	5160	5000
Removable battery	No	No
Wireless charging	No	-
Colours	Sparkling Purple, Starry Bllack	White, Black, Blue
Form factor	-	Touchscreen
Fast charging	-	Proprietary
display
Refresh Rate	120 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.88	6.50
Touchscreen	Yes	Yes
Resolution	720x1640 pixels	720x1600 pixels
hardware
Processor	octa-core	2GHz octa-core
Processor make	Qualcomm Snapdragon 4s Gen 2	Samsung Exynos 850
RAM	4GB	4GB
Internal storage	64GB, 128GB	64GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	1-24	512
Dedicated microSD slot	Yes	Yes
camera
Rear camera	50-megapixel (f/1.8) + Unspecified	48-megapixel (f/2.0) + 8-megapixel (f/2.0) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)
No. of Rear Cameras	2	-
Front camera	5-megapixel (f/2.2)	13-megapixel (f/2.2)
No. of Front Cameras	1	-
Rear flash	-	Yes
software
Operating system	Android 14	Android 10
Skin	HyperOS	One UI
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	-
GPS	Yes	-
Bluetooth	Yes, v 5.00	Yes, v 5.00
USB Type-C	Yes	-
Number of SIMs	2	-
Active 4G on both SIM cards	Yes	-
NFC	-	Yes
Headphones	-	3.5mm
sim 1
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	Yes	-
5G	Yes	-
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
3G	Yes	-
4G/ LTE	Yes	-
5G	Yes	-
sensors
Fingerprint sensor	-	Yes

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