Samsung S21 vs A21 – What's the difference between Samsung A21 and S21?

Samsung S21 vs A21 – What’s the difference between Samsung A21 and S21?

Here you can compare Samsung S21 vs A21. If you compare the Samsung Galaxy S21 with the Samsung Galaxy A21, you can verify their respective specifications and unique features. It could potentially help you understand how the Samsung Galaxy S21 fares against the Samsung Galaxy A21 and which one to buy. Currently, the lowest price for the Samsung Galaxy S21 is $699.99 on Amazon and the Samsung Galaxy A21 is $186.89 on Amazon.

Samsung S21 vs A21

Faster CPU?

Between Samsung S21 vs A21, which one has a faster CPU? The Samsung Galaxy S21 has 2.9 GHz, while the Samsung Galaxy A21 has 2.3 GHz. Samsung S21 is about 26% faster CPU than Samsung Galaxy A21. A faster CPU means a smoother experience.

Samsung S21 vs A21 – More RAM?

Samsung Galaxy S21 has 8 GB and Samsung Galaxy A21 has 3 GB. About 166% more RAM than Samsung Galaxy A21. More RAM means that more applications can run at the same time, making the device faster.

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Better screen resolution

Between Samsung S21 vs A21, which comes with better screen resolution? The Samsung Galaxy S21 has 1080 x 2400 pixels and the Samsung Galaxy A21 has 720 x 1600 pixels. About 125% more pixels than the Samsung Galaxy A21. More resolution means a sharper and sharper screen.


Samsung Galaxy S21 169 g and Samsung Galaxy A21 weigh 193 g. S21 is 12% lighter than Samsung Galaxy A21. Light gear is easier to hold without tiring your arms.

Supports memory card slot

The Samsung Galaxy A21 has a slot for a memory card. Memory cards provide more storage capacity for your device. So that you can store more songs, photos and videos.

More storage capacity

If you compare Samsung A21 and S21 storage, you will see that Samsung Galaxy S21 128 GB and Samsung Galaxy A21 32 GB. That is about 300% more built-in memory than the Samsung Galaxy A21. With more memory, you can store more songs, videos, photos and install more applications.

Supports FM radio?

The Samsung Galaxy A21 supports FM radio, but the Samsung Galaxy S21 does not. Listen to your favorite radio stations on your device. Enjoy music on the go with FM radio.

3.5mm headphone jack?

The Samsung Galaxy S21 does not have a headphone jack, but the Samsung Galaxy A21 does.

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With a 3.5 mm connection you can connect a large number of other devices (for example speakers) with a 3.5 mm connection.

Samsung S21 Vs A21 Specifications Comparison

Key Specs
ProcessorSamsung Exynos 2100/Snapdragon 888MediaTek Helio P35
Front Camera10-megapixel8-megapixel
Rear Camera12-megapixel + 12-megapixel + 64-megapixel48-megapixel + 5-megapixel + 2-megapixel + 2-megapixel
Battery Capacity4000mAh5000mAh
OSAndroid 11Android 10
Resolution1080×2400 pixels720×1600 pixels
ModelGalaxy S21Galaxy A12
Release date14th January 202124th November 2020
Form factorTouchscreenTouchscreen
Dimensions (mm)151.70 x 71.20 x 7.90164.00 x 75.80 x 8.90
Weight (g)171.00205.00
IP ratingIP68
Battery capacity (mAh)40005000
Fast chargingProprietaryProprietary
Wireless chargingYes
ColoursPhantom VioletBlack, Blue, White
Launched in IndiaYes
Screen size (inches)6.206.50
Resolution1080×2400 pixels720×1600 pixels
Protection typeGorilla Glass
Aspect ratio20:920:9
Pixels per inch (PPI)421
Processor2.2GHz octa-core (3×2.8GHz + 4×2.2GHz + 1×2.9GHz)1.8GHz octa-core (4×1.8GHz + 4x23GHz)
Processor makeSamsung Exynos 2100MediaTek Helio P35 (MT6765)
Internal storage128GB64GB
Expandable storageYes
Expandable storage typemicroSD
Expandable storage up to (GB)1000
Rear camera12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron)48-megapixel (f/2.0) + 5-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)
No. of Rear Cameras3
Rear autofocusYesYes
Rear flashYesYes
Front camera10-megapixel (f/2.2, 1.22-micron)8-megapixel (f/2.2)
No. of Front Cameras1
Operating systemAndroid 11Android 10
SkinOne UI 3.1One UI Core 2.5
Wi-Fi standards supported802.11 a/b/g/n/ac/Yes
BluetoothYes, v 5.00Yes
USB Type-CYesYes
Number of SIMs22
Sim 1
SIM TypeNano-SIMNano-SIM
4G/ LTEYesYes
Sim 2
SIM TypeNano-SIMNano-SIM
4G/ LTEYesYes
Face unlockYes
In-Display Fingerprint SensorYes
Compass/ MagnetometerYes
Proximity sensorYesYes
Ambient light sensorYesYes
Fingerprint sensorYes
Buy Galaxy S21
Buy Samsung A21

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