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Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31

In this article, we will be comparing Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 where all the three phones were released in India in 2020 itself and have been available since then.

Let us now compare Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 for you to pick the best phone for yourself.

Also Read : Samsung Mobile Price List In India

As we move further in this article, we will be discussing Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 specifications in detail :

Display

Samsung Galaxy A31 and Samsung Galaxy M31 both have 6.4 inches Super AMOLED display with 20:9 and 19:5:9 aspect ratio respectively. Samsung Galaxy M31 comes with Corning Gorilla Glass 3 protection. On the other hand, Samsung Galaxy A51 has a 6.5 inches Super AMOLED display with 20:9 aspect ratio with Corning Gorilla Glass 3 protection. When we compare Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31, all the three phones run on Android 10 and are powered One UI 2.0, One UI 2.1 and One UI 2.5 respectively. All the three phones support dual-SIM ( Nano ).

Processor and Storage

Samsung Galaxy A31 is an advanced Octa-core processor and comes paired with up to 6GB RAM. On the other hand, Samsung Galaxy A51 is a Exynos 9611 and comes paired with up to 8GB RAM. However, Samsung Galaxy M31 is powered by Exynos 9611 and comes paired with up to 8GB RAM as well.

When we consider comparing Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 in terms of storage, all the three phones have an onboard storage of 128GB which is expandable via microSD card ( up to 512GB in Samsung Galaxy A31 ).

Also Read : Best Mobile Phones Under 50,000

Camera

Samsung Galaxy A31 has a 48MP primary camera, 8MP ultra-wide camera, 5MP macro lens and 5MP depth sensor. On the other hand, Samsung Galaxy A51 has a 48MP primary camera, a 8MP ultrawide camera, 5MP macro lens and a 5MP depth sensor. Samsung Galaxy M31 has a 64MP primary camera, 8MP ultra-wide lens, 5MP macro lens and a 5MP depth sensor.

When we compare Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 front cameras, Galaxy A31 has a 20MP selfie camera whereas Galaxy A51 and Galaxy M31 both have 32MP selfie cameras.

Battery

Samsung Galaxy A31 has a 5,000mAh battery as well that supports 15W fast charging. Samsung Galaxy A51 has a 4,000mAh battery with 15W fast charging support. Whereas, Samsung Galaxy M31 has an impressive 6,000mAh battery with 15W fast charging benefit available.

Also Read : Top 10 Mobile Phones

We have compared Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy M31 above so that you can choose a phone that fits your demands and budget.

Key Feature Comparison

7

Samsung Galaxy A31

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6.9

Samsung Galaxy A51

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6.9

Samsung Galaxy M31

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At a Glance

Show differences only

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

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

4000 mAh

Li-ion, Fast, 15W

6000 mAh

Li-ion, Fast, 15W

6.4 inches

411 ppi, FHD

6.5 inches

405 ppi, FHD

6.4 inches

403 ppi, FHD

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

1920x1080 @ 30 fps

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

3840x2160 @ 30 fps

Quad, 64MP + 8MP + 5MP + 5MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM, Dual VoLTE

Detailed Specs

Screen Size

6.4 inches
6.5 inches
6.4 inches

Screen Type

Super AMOLED
Super AMOLED
Super AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2400 pixels
1080 x 2340 pixels

Pixel Density

411 ppi
405 ppi
403 ppi

Aspect Ratio

20:09
20:09
19.5:9

Screen to Body Ratio

84.92%
87.44%
83.92%

Screen Design

Waterdrop notch
Punch hole
Regular notch

Screen Quality

FHD
FHD
FHD

Screen Protection

-
Gorilla Glass 3
Gorilla Glass 3

Phone Variants

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

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Expandable Storage Capacity

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

OTG Support

Yes
Yes
Yes

Storage Type

-
UFS 2.0
UFS 2.1

Sensors

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

Operating System

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

GPU

Mali-G52
Mali-G72 MP3
Mali-G72 MP3

Chipset

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

CPU

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)
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

12 nm
10 nm
10 nm

Battery Capacity

5000 mAh
4000 mAh
6000 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

24-Mar-20
5-Dec-19
25-Feb-20

Market Status

Available
Available
Available

Brand

Samsung
Samsung
Samsung

Model Number

SM-A315FZB1INS/SM-A315FZBWINS
SM-A515FZB1INS/SM-A515FZBWINS
SM-M315FZKDINS

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 17,999
Rs. 20,450
Rs. 15,999

GPS

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

Audio Features

Dolby Atmos
Dolby Atmos
Dolby Atmos

NFC

Yes
Yes
No

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

FM Radio

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, Dual VoLTE

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) / 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...
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...

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) / 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...
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...

Front Video Recording

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

Front Camera Setup

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

Front Camera 1 Resolution

20 MP
32 MP
32 MP

Front Camera 1 Type

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

Front Aperture

f/2.2
f/2.2
f/2.0

Front Flash

No
No
No

Front Camera Features

-
HDR
HDR

Front Camera 1 Lens

-
2.8" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size

Weight

185 grams
172 grams
191 grams

Colors

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

Dimensions

159.3 x 73.1 x 8.6 mm
158.5 x 73.6 x 7.9 mm
159.2 x 75.1 x 8.9 mm

SAR Value

Head: 1.13 W/kg
Head: 0.598 W/kg
Head: 0.383 W/kg

Build

-
Back: Plastic
Back: Plastic

OIS

No
No
No

Rear Flash

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

Rear Video Recording

1920x1080 @ 30 fps
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 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 + 5MP + 5MP
Quad, 48MP + 12MP + 5MP + 5MP
Quad, 64MP + 8MP + 5MP + 5MP

Rear Camera 1 Resolution

48 MP
48 MP
64 MP

Rear Camera 1 Type

f/2.0 (upto 8x Digital Zoom) Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.8 (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, 2.25" sensor size, 0.8 micrometre pixel size
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

8 MP
12 MP
8 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

5 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

5 MP
5 MP
5 MP

Rear Camera 4 Type

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

Rear Aperture

f/2.0
f/2.0
f/1.8

Rear Sensor

-
ISO-CELL
ISOCELL Plus

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

On-Screen
On-Screen
Rear

Fingerprint Scanner Type

Optical
Optical
-

Face Unlock

Yes
Yes
Yes

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