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Samsung Galaxy M21 vs Samsung Galaxy A31

Summary
84%
85%
Display

6.4" (16.26 cm)

1080x2340 px, 403 PPI

6.4" (16.26 cm)

1080x2400 px, 411 PPI

Performance

Quad + Quad Core

2.3 GHz + 1.7 GHz, 4 GB RAM

Dual + Hexa Core

2 GHz + 1.7 GHz, 6 GB RAM

Storage

64 GB

512 GB (Expandable)

128 GB

512 GB (Expandable)

Camera

48 MP + 8 MP + 5 MP (Primary)

20 MP(Front)

48 MP + 8 MP + 5 MP + 5 MP (Primary)

20 MP(Front)

Battery

6000 mAh

5000 mAh

33 h talktime (4G)

Expert Rating

★★★★★
★★★★★

Read Expert Review

★★★★★
★★★★★

Read Expert Review

User Rating

★★★★★
★★★★★

4.2/5 based on 89,092 ratings

Read All User Reviews

★★★★★
★★★★★

4.3/5 based on 7,918 ratings

Read All User Reviews

Best Prices
Rs. 13,999 @Amazon Buy
Rs. 13,999 @Samsung... Buy
Rs. 14,455 @Paytm M... Buy
Rs. 16,999 @Tata CL... Buy
Rs. 17,459 @Paytm M... Buy
Rs. 17,999 @Flipkart Buy
SEE ALL PRICES
General
Launch Date

March 18, 2020 (Official)

June 4, 2020 (Official)

Brand

Samsung

Samsung

Model

Galaxy M21

Galaxy A31

Operating System

Android v10 (Q)

Android v10 (Q)

Custom UI

Samsung One UI

Samsung One UI

SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano

Network

4G: Available (supports Indian bands),
3G: Available, 2G: Available

4G: Available (supports Indian bands),
3G: Available, 2G: Available

Fingerprint Sensor

yes

yes

Quick Charging

yes Fast, 15W

yes Fast, 15W

Design
Size Compare
Size Compare
Dimensions

Height: 159 mm
Width: 75.1 mm
Thickness: 8.9 mm

Height: 159.3 mm
Width: 73.1 mm
Thickness: 8.6 mm

Weight

188 grams

185 grams

Build Material


Back: Plastic

Colours

Midnight Blue, Raven Black

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

Display
Very Good
Very Good
Screen Size

6.4 " (16.26 cm)

6.4 " (16.26 cm)

Screen Resolution

1080 x 2340 pixels

1080 x 2400 pixels

Aspect Ratio

19.5:9

20:9

Bezel-less display

yes with waterdrop notch

yes with waterdrop notch

Pixel Density

403 ppi

411 ppi

Display Type

Super AMOLED

Super AMOLED

Screen Protection

Corning Gorilla Glass v3

Touch Screen

yes Capacitive Touchscreen, Multi-touch

yes Capacitive Touchscreen, Multi-touch

Screen to Body Ratio (claimed by the brand)

91 %

Screen to Body Ratio (calculated)

84.02 %

84.92 %

Performance
Very Good
Very Good
Chipset

Samsung Exynos 9 Octa 9611

MediaTek Helio P65

Processor

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

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

Architecture

64 bit

64 bit

Graphics

Mali-G72 MP3

Mali-G52

RAM

4 GB

6 GB

Bootup Time (tested by 91mobiles)

23.0 s

31.0 s

Storage
Best in Class
Best in Class
Internal Memory

64 GB

128 GB

Expandable Memory

yes Up to 512 GB

yes Up to 512 GB

User Available Storage

Up to 49 GB

Up to 104 GB

USB OTG Support

yes

yes

Camera
Very Good
Very Good
Main Camera
Camera Setup

Triple

Quad

Resolution

48 MP f/2.0 (upto 4x Digital Zoom) Primary Camera(26 mm focal length, 2" sensor size, 0.8µm pixel size)8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera(12 mm focal length, 4.0" sensor size, 1.12µm pixel size)5 MP f/2.2, Depth Camera

48 MP f/2.0 (upto 8x Digital Zoom) Primary Camera(26 mm focal length, 2" sensor size, 0.8µm pixel size)8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera
5 MP f/2.4, Macro Camera
5 MP f/2.4, Depth Camera

Sensor

CMOS image sensor

Autofocus

yes Phase Detection autofocus

yes

Physical Aperture

F2.0

F2.0

Optical Image Stabilisation

no  No

no  No

Flash

yes LED Flash

yes LED Flash

Image Resolution

8000 x 6000 Pixels

8000 x 6000 Pixels

Settings

Exposure compensation, ISO control

Exposure compensation, ISO control

Shooting Modes

Continuos Shooting, High Dynamic Range mode (HDR)

Continuos Shooting, High Dynamic Range mode (HDR)

Camera Features

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

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

Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

1920x1080 @ 30 fps

Front Camera
Camera Setup

Single

Single

Resolution

20 MP f/2.2 Primary Camera(26 mm focal length)

20 MP f/2.2 Primary Camera

Sensor

CMOS

Autofocus

no  No

no  No

Physical Aperture

F2.2

F2.2

Flash

no  No

no  No

Video Recording

1920x1080 @ 30 fps

1920x1080 @ 30 fps

Battery
Excellent
Excellent
Capacity

6000 mAh

5000 mAh

Type

Li-ion

Li-ion

User Replaceable

no  No

no  No

TalkTime

Up to 33 Hours(4G)

Quick Charging

yes Fast, 15W

yes Fast, 15W

USB Type-C

yes

yes

Battery Charging Time (20% to 100%) (tested by 91mobiles)

02h 09m 47s

01h 45m 14s

Network & Connectivity
SIM Size

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano

Network Support

4G (supports Indian bands), 3G, 2G

4G (supports Indian bands), 3G, 2G

VoLTE

yes

yes

SIM 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) / 850(band 5) / 800(band 20)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

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 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

SIM 2

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) / 850(band 5) / 800(band 20)
3G Bands:
UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

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 1900 / 2100 / 850 / 900 MHz
2G Bands:
GSM 1800 / 1900 / 850 / 900 MHz
GPRS:
Available
EDGE:
Available
Read More..

SAR Value

Head: 0.468 W/kg

Head: 1.13 W/kg

Wi-Fi

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

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

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Calling

yes

Bluetooth

yes v5.0

yes v5.0

GPS

yes with A-GPS, Glonass

yes with A-GPS, Glonass

NFC

no  No

yes

USB Connectivity

Mass storage device, USB charging

Mass storage device, USB charging

Multimedia
FM Radio

yes

Loudspeaker

yes

yes

Audio Jack

3.5 mm

3.5 mm

Audio Features

Dolby Atmos

Dolby Atmos

Special Features
Fingerprint Sensor

yes

yes

Fingerprint Sensor Position

Rear

On-screen

Fingerprint Sensor Type

Optical

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope

Light sensor, Proximity sensor, Accelerometer, Gyroscope

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Related Questions

Ask a Question
  • Does Samsung Galaxy M21 support OTG?

    K

    Answered By Kavya Rangan | 9 months ago

    Yes, the Samsung Galaxy M21 does support OTG but the user would have to buy a USB Type-C OTG cable.

    Check Full Device Specifications Samsung Galaxy M21

  • Is Samsung Galaxy A31 waterproof?

    A

    Answered By Arun Sharma | 9 months ago

    No, the Samsung Galaxy A31 is not waterproof and it is obvious for its price.

    To know if any device is waterproof or dustproof, you just need to check its IP rating and the Samsung Galaxy A31 doesn't have this rating.

    Check out what IP rating means-


    Check Full Device Specifications Samsung Galaxy A31

  • Does Samsung Galaxy M21 have a Knox security?

    A

    Answered By Anusha Mistry | 8 months ago

    Yes, the Samsung Galaxy M21 does have the Knox security which means a set of features and pre-installed apps in the device.

    Check Full Device Specifications Samsung Galaxy M21 

  • Does Samsung Galaxy M21 support VoLTE in both the sim slot?

    N

    Answered By Nischal Chauhan | 9 months ago

    Yes, the Samsung Galaxy M21 does support VoLTE in both the SIMs and the device is also Dual Standby.

    Check Full Device Specifications Samsung Galaxy M21

  • Is Samsung Galaxy M21 waterproof?

    A

    Answered By Ayushi Veer | 8 months ago

    Samsung Galaxy M21 is a Budget Friendly Device.

    It does not come with Water proof, Splash Proof or any such related ratings.

    This is not quite surprising, because such ratings come with more High End devices.

    Also, do not forget to find all the detailed specifications and other latest updates related to Samsung Galaxy M21 here

View all Popular Questions