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Samsung Galaxy A21S vs Samsung Galaxy A31 vs Samsung Galaxy A51

Today we are going to talk about Samsung Galaxy A21s vs Samsung Galaxy A31 vs Samsung Galaxy A51.  Samsung is one of the topmost shareholders in the global smartphone market. It produces flagship devices with the best features in the Android Operating System business. Samsung is currently popular because of its series as the company is launching a lot of products in that series. Samsung produces both budget-friendly and expensive smartphones with the best features. Let’s compare the three smartphones based on their basic aspects and find the best out of them.

Also read: Samsung Mobile Price List In India

Display

Talking about the display we have the Samsung Galaxy A21s and Samsung Galaxy A51 with 6.5 inches screen size and a punch-hole display. Samsung Galaxy A31 on the other hand comes with 6.4 inches screen size and a waterdrop display. Moving on the Samsung Galaxy A31 and Samsung Galaxy A51 comes with a super AMOLED screen type whereas the Samsung Galaxy A21s comes with a PLS TFT LCD.

Performance

Let us discuss the performance of the three smartphones, all three smartphones run on the Android v10 operating system. Moreover,  all three smartphones come with the Samsung one UI custom user interface with an Octa-Core CPU.

Samsung Galaxy A21s comes with the Mali-G52 MP1 GPU with the Samsung Exynos 8 Octa850 chipset. Moving on we have the Samsung Galaxy A31 with Mali-G52 GPU and MediaTek Helio P65 chipset. Samsung Galaxy A51 on the other hand comes with a Mali-G72 MP3 GPU with Samsung Exynos 9 Octa 9611 chipset.

Also read: Best Mobile Phones Under 20,000

Memory and battery

Moving on to the memory and storage variants of the three smartphones; the Samsung Galaxy A21s and Samsung Galaxy A51 with two memory and storage variants whereas the Samsung Galaxy A31 only comes in one memory and storage variant.The Samsung Galaxy A21s comes in 64 GB + 4 GB RAM and 64 GB + 6 GB Ram and storage variants.The Samsung Galaxy A31 comes in only 128 GB + 6 GB RAM storage variant whereas the Samsung Galaxy A51 comes in 128 GB + 6 GB Ram and 128 GB + 8 GB RAM storage variants.

Both smartphones come with an expandable storage capacity of up to 512 GB. talking about the battery we have Samsung Galaxy A21s and Samsung Galaxy A31 with 5000mAh  battery capacity whereas the Samsung Galaxy A51 only comes with 4000mAh  battery capacity. All three smartphones support fast charging and come with a USB Type-C charging port.

Camera

All three smartphones come with a single-camera setup on the front end. The Samsung Galaxy A21s comes with a 13MP camera and the Samsung Galaxy A 31 comes with a 20MP camera. The Samsung Galaxy A51 on the other hand comes with a 32 MP camera on the front end.

On the rear end,  all 3 smartphones come with a quad-camera setup. The Samsung Galaxy A21s comes with a 48 MP + 8 MP + 2MP + 2MP rear camera setup. The Samsung Galaxy A31 comes with a 48 MP + 48 MP + 5 MP + 5MP camera setup. The Samsung Galaxy A51 on the other hand comes with a 48 MP + 12MP + 5MP + 5MP camera setup on the rear end.

Also read: Best Mobile Phones Under Rs 15,000 This was the comparison between the three smartphones by Samsung. all three have great potential with the best features. The price range also does justice to the features of the smartphone. moving on the users can choose the best smartphone based on their interest and need.

Key Feature Comparison

6.5

Samsung Galaxy A21s

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7

Samsung Galaxy A31

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6.9

Samsung Galaxy A51

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At a Glance

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Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)

Samsung Exynos 8 Octa 850, Mali-G52 MP1

Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)

MediaTek Helio P65, Mali-G52

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

5000 mAh

Li-ion, Fast, 15W

5000 mAh

Li-ion, Fast, 15W

4000 mAh

Li-ion, Fast, 15W

6.5 inches

270 ppi

6.4 inches

411 ppi, FHD

6.5 inches

405 ppi, FHD

Quad, 48MP + 8MP + 2MP + 2MP

1920x1080 @ 30 fps

Quad, 48MP + 8MP + 5MP + 5MP

1920x1080 @ 30 fps

Quad, 48MP + 12MP + 5MP + 5MP

3840x2160 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.5 inches
6.4 inches
6.5 inches

Screen Type

TFT
Super AMOLED
Super AMOLED

Screen Resolution

720 x 1600 pixels
1080 x 2400 pixels
1080 x 2400 pixels

Pixel Density

270 ppi
411 ppi
405 ppi

Aspect Ratio

20:09
20:09
20:09

Screen to Body Ratio

82.75%
84.92%
87.44%

Screen Design

Punch hole
Waterdrop notch
Punch hole

Screen Quality

-
FHD
FHD

Phone Variants

6GB 64GB, 4GB 64GB, 6GB 128GB
6GB 128GB
8GB 128GB, 6GB 128GB

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Storage Type

eMMC 5.1
-
UFS 2.0

Expandable Storage Capacity

Yes, 512 GB
Yes, 512 GB
Yes, 512 GB

OTG Support

Yes
Yes
Yes

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope

Operating System

Android v10 (Q)
Android v10 (Q)
Android v10 (Q)

GPU

Mali-G52 MP1
Mali-G52
Mali-G72 MP3

Chipset

Samsung Exynos 8 Octa 850
MediaTek Helio P65
Samsung Exynos 9 Octa 9611

CPU

Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Custom User Interface

Samsung One UI
Samsung One UI
Samsung One UI

Clock Speed

2 GHz
2 GHz
2.3 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

8 nm
12 nm
10 nm

Battery Capacity

5000 mAh
5000 mAh
4000 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-ion
Li-ion

Charger Type

Fast, 15W
Fast, 15W
Fast, 15W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

15-May-20
24-Mar-20
5-Dec-19

Market Status

Available
Available
Available

Brand

Samsung
Samsung
Samsung

Model Number

SM-A217FZB1INS/SM-A217FZBGINS/SM-A217FZB5INS
SM-A315FZB1INS/SM-A315FZBWINS
SM-A515FZB1INS/SM-A515FZBWINS

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 13,999
Rs. 17,999
Rs. 20,450

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass

NFC

No
Yes
Yes

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

3.5mm Audio Jack

Yes
Yes
Yes

SIM Size

SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz

Bluetooth Type

v5.0
v5.0
v5.0

Audio Jack

3.5 mm
3.5 mm
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM

eSIM

No
No
No

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot

VoLTE

Yes
Yes
Yes

SIM 1 Bands

4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 1...

SIM 2 Bands

4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...

Audio Features

-
Dolby Atmos
Dolby Atmos

FM Radio

-
Yes
-

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps

Front Camera Setup

Single, 13MP
Single, 20MP
Single, 32MP

Front Camera 1 Resolution

13 MP
20 MP
32 MP

Front Camera 1 Type

f/2.2 Primary Camera
f/2.2 Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

3.1" sensor size, 1.12 micrometre pixel size
-
2.8" sensor size, 0.8 micrometre pixel size

Front Aperture

f/2.2
f/2.2
f/2.2

Front Flash

No
No
No

Weight

192 grams
185 grams
172 grams

Colors

Black, Blue, White
Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue

Build

Back: Plastic
-
Back: Plastic

Dimensions

163.7 x 75.3 x 8.9 mm
159.3 x 73.1 x 8.6 mm
158.5 x 73.6 x 7.9 mm

SAR Value

Head: 0.831 W/kg
Head: 1.13 W/kg
Head: 0.598 W/kg

OIS

No
No
No

Rear Flash

Yes, LED Flash
Yes, LED Flash
Yes, LED Flash

Rear Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps
3840x2160 @ 30 fps

Rear Camera Features

8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Quad, 48MP + 8MP + 2MP + 2MP
Quad, 48MP + 8MP + 5MP + 5MP
Quad, 48MP + 12MP + 5MP + 5MP

Rear Camera 1 Resolution

48 MP
48 MP
48 MP

Rear Camera 1 Type

f/2.0 (upto 8x Digital Zoom), Wide Angle Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera

Rear Camera 1 Lens

26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

8 MP
8 MP
12 MP

Rear Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 2 Lens

4.0" sensor size, 1.12 micrometre pixel size
-
-

Rear Camera 3 Resolution

2 MP
5 MP
5 MP

Rear Camera 3 Type

f/2.4, Macro Camera
f/2.4, Macro Camera
f/2.4, Macro Camera

Rear Camera 4 Resolution

2 MP
5 MP
5 MP

Rear Camera 4 Type

f/2.4, Depth Camera
f/2.4, Depth Camera
f/2.2, Depth Camera

Rear Aperture

f/2.0
f/2.0
f/2.0

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Rear
On-Screen
On-Screen

Face Unlock

Yes
Yes
Yes

Fingerprint Scanner Type

-
Optical
Optical

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