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Samsung Galaxy A12 (Exynos) vs Samsung Galaxy M21 2021 Edition vs Samsung Galaxy M31s

Key Feature Comparison

6.3

Samsung Galaxy A12 (Exynos)

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7.1

Samsung Galaxy M21 2021 Edition

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6.9

Samsung Galaxy M31s

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

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

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

6000 mAh

Li-ion, Fast, 15W

6000 mAh

Li-ion, Fast, 25W

16.51 cm (6.5 inch)

270 ppi, HD

16.26 cm (6.4 inch)

403 ppi, FHD

16.51 cm (6.5 inch)

405 ppi, FHD

Quad, 48MP + 5MP + 2MP + 2MP

1920x1080 @ 30 fps

Triple, 48MP + 8MP + 5MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

Quad, 64MP + 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

16.51 cm (6.5 inch)
16.26 cm (6.4 inch)
16.51 cm (6.5 inch)

Screen Type

TFT
Super AMOLED
Super AMOLED

Screen Resolution

720 x 1600 pixels
1080 x 2340 pixels
1080 x 2400 pixels

Pixel Density

270 ppi
403 ppi
405 ppi

Aspect Ratio

20:09
19.5:9
20:09

Screen to Body Ratio

82.06%
84.02%
91%

Screen Design

Regular notch
Regular notch
Punch hole

Screen Quality

HD
FHD
FHD

Screen Protection

-
Gorilla Glass 3
Gorilla Glass 3

Screen Refresh Rate

-
60 Hz
60 Hz

Peak Brightness

-
420 nits
420 nits

Phone Variants

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

Expandable Storage

Yes
Yes
Yes

Storage Type

eMMC 5.1
UFS 2.1
UFS 2.1

Expandable Storage Capacity

Yes, 1 TB
Yes, 512 GB
Yes, 512 GB

RAM Type

-
LPDDR4X
LPDDR4X

Sensors

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

Operating System

Android v11
Android v11
Android v10 (Q)

GPU

Mali-G52 MP1
Mali-G72 MP3
Mali-G72 MP3

Chipset

Samsung Exynos 8 Octa 850
Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 9611

CPU

Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
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
2.3 GHz
2.3 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

8 nm
10 nm
10 nm

Battery Capacity

5000 mAh
6000 mAh
6000 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-ion
Li-ion

Charger Type

Fast, 15W
Fast, 15W
Fast, 25W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

12-Aug-21
26-Jul-21
30-Jul-20

Market Status

Available
Available
Available

Brand

Samsung
Samsung
Samsung

Model Number

SM-A125FZKGINS/SM-A127FZKGINS
SM-M215GLBDINS
SM-M317FZBDINS

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 13,999
Rs. 12,499
Rs. 18,499

GPS

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

NFC

No
No
No

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, 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
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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 /...
4G Bands: TD-LTE 2300(band 40), FD-LTE 1800(band 3), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
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 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...

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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 /...
4G Bands: TD-LTE 2300(band 40), FD-LTE 1800(band 3), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
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 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...

Front Video Recording

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

Front Camera Setup

Single, 8MP
Single, 20MP
Single, 32MP

Front Camera 1 Resolution

8 MP
20 MP
32 MP

Front Camera 1 Type

f/2.2 Primary Camera
f/2.0 Primary Camera
f/2.2 Primary Camera

Front Aperture

f/2.2
f/2.0
f/2.2

Front Flash

No
No
No

Weight

205 grams
188 grams
203 grams

Colors

Black, Blue, White
Arctic Blue, Charcoal Black
Mirage Black, Mirage Blue

Build

Back: Plastic
Back: Plastic
Back: Plastic

Dimensions

164 x 75.8 x 8.8 mm
159 x 75.1 x 8.9 mm
159.3 x 74.4 x 9.3 mm

OIS

No
No
No

Rear Flash

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

Rear Video Recording

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

Rear Camera Features

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

Rear Camera Setup

Quad, 48MP + 5MP + 2MP + 2MP
Triple, 48MP + 8MP + 5MP
Quad, 64MP + 12MP + 5MP + 5MP

Rear Camera 1 Resolution

48 MP
48 MP
64 MP

Rear Camera 1 Type

f/2.0 (upto 10x Digital Zoom), Wide Angle (80 degree field-of-view) Primary Camera
f/2.0 Primary Camera
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera

Rear Camera 1 Lens

26 mm focal length
-
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

5 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 3 Resolution

2 MP
5 MP
5 MP

Rear Camera 3 Type

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

Rear Camera 4 Resolution

2 MP
-
5 MP

Rear Camera 4 Type

f/2.4, Depth Camera
-
f/2.4, Depth Camera

Rear Sensor

ISOCELL Plus
ISOCELL Plus
Exmor-RS CMOS Sensor

Rear Aperture

f/2.0
f/2.0
f/1.8

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Side
Rear
Side

Face Unlock

Yes
-
Yes
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