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Samsung Galaxy M31 128GB vs Samsung Galaxy M21 128GB

Summary
87%
86%
Display

6.4" (16.26 cm)

1080x2340 px, 403 PPI

6.4" (16.26 cm)

1080x2340 px, 403 PPI

Performance

Quad + Quad Core

2.3 GHz + 1.7 GHz, 6 GB RAM

Quad + Quad Core

2.3 GHz + 1.7 GHz, 6 GB RAM

Storage

128 GB

512 GB (Expandable)

128 GB

512 GB (Expandable)

Camera

64 MP + 8 MP + 5 MP + 5 MP (Primary)

32 MP(Front)

48 MP + 8 MP + 5 MP (Primary)

20 MP(Front)

Battery

6000 mAh

48 h talktime (4G)

6000 mAh

Expert Rating

★★★★★
★★★★★

Read Expert Review

★★★★★
★★★★★

Read Expert Review

User Rating

★★★★★
★★★★★

4.2/5 based on 103,028 ratings

Read All User Reviews

★★★★★
★★★★★

4.2/5 based on 60,741 ratings

Read All User Reviews

Best Prices
Rs. 16,499 @Amazon Buy
Rs. 16,499 @Samsung... Buy
Rs. 17,532 @Paytm M... Buy
Rs. 14,999 @Amazon Buy
Rs. 14,999 @Samsung... Buy
Not available in any other store
General
Launch Date

April 6, 2020 (Official)

March 23, 2020 (Official)

Brand

Samsung

Samsung

Model

Galaxy M31 128GB

Galaxy M21 128GB

Operating System

Android v10 (Q)

Android v10 (Q)

Custom UI

Samsung One UI

Samsung One UI

SIM Slot(s)

Dual SIM, GSM+GSM, Dual VoLTE

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: 159.2 mm
Width: 75.1 mm
Thickness: 8.9 mm

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

Weight

191 grams

188 grams

Build Material


Back: Plastic


Back: Plastic

Colours

Black, Blue

Midnight Blue, Raven Black

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 2340 pixels

Aspect Ratio

19.5:9

19.5:9

Bezel-less display

yes with waterdrop notch

yes with waterdrop notch

Pixel Density

403 ppi

403 ppi

Display Type

Super AMOLED

Super AMOLED

Screen Protection

Corning Gorilla Glass v3

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)

83.92 %

84.02 %

Performance
Very Good
Very Good
Chipset

Samsung Exynos 9 Octa 9611

Samsung Exynos 9 Octa 9611

Processor

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)

Architecture

64 bit

64 bit

Graphics

Mali-G72 MP3

Mali-G72 MP3

RAM

6 GB

6 GB

Bootup Time (tested by 91mobiles)

26.0 s

23.0 s

Storage
Best in Class
Best in Class
Internal Memory

128 GB

128 GB

Expandable Memory

yes Up to 512 GB

yes Up to 512 GB

User Available Storage

Up to 108 GB

Up to 108 GB

USB OTG Support

yes

yes

Camera
Very Good
Very Good
Main Camera
Camera Setup

Quad

Triple

Resolution

64 MP f/1.8 (upto 8x Digital Zoom) Primary Camera(26 mm focal length, 1.7" 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/2.4, Macro Camera(25 mm focal length, 5.0" sensor size, 1.12µm pixel size)5 MP f/2.2, Depth Camera

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

Sensor

ISOCELL Plus

CMOS image sensor

Autofocus

yes Phase Detection autofocus

yes Phase Detection autofocus

Physical Aperture

F1.8

F2.0

Optical Image Stabilisation

no  No

no  No

Flash

yes LED Flash

yes LED Flash

Image Resolution

9000 x 7000 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

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

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

Video Recording

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

3840x2160 @ 30 fps, 1920x1080 @ 30 fps

Front Camera
Camera Setup

Single

Single

Resolution

32 MP f/2.0 Primary Camera(26 mm focal length, 2.8" sensor size, 0.8µm pixel size)

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

Sensor

Exmor RS

CMOS

Autofocus

no  No

no  No

Physical Aperture

F2.0

F2.2

Flash

no  No

no  No

Video Recording

1920x1080 @ 30 fps

1920x1080 @ 30 fps

Battery
Excellent
Excellent
Capacity

6000 mAh

6000 mAh

Type

Li-ion

Li-ion

User Replaceable

no  No

no  No

TalkTime

Up to 48 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 01m 08s

02h 09m 47s

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) / 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 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) / 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..

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) / 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 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) / 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..

SAR Value

Head: 0.383 W/kg

Head: 0.468 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

Bluetooth

yes v5.0

yes v5.0

GPS

yes with A-GPS, Glonass

yes with A-GPS, Glonass

NFC

no  No

no  No

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

Rear

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Light sensor, Proximity sensor, Accelerometer, Gyroscope

Price list

Rs. 16,499
Buy Now
Rs. 14,999
Buy Now

Rs. 16,499
Buy Now
Rs. 14,999
Buy Now

Rs. 17,532
Buy Now
Offer: Use promocode MOB10 to get Rs. 1948 cashb...  View All Offers
Offersx

1. Use promocode MOB10 to get Rs. 1948 cashback. With Cashback of Rs. 1948, your Effective price is Rs. 17532.

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Related Questions

Ask a Question
  • Does Samsung Galaxy M31 supports VoLTE in both the sim slots ?

    V

    Answered By Vikas Gavde | 9 months ago

    Samsung Galaxy M31 is a VoLTE device.

    The device also comes with Dual 4G Bands. This lets the user to enjoy 4G services in both of the Sim Slots.

    In the meantime, do not forget to find all the detailed specifications and other latest updates related to Samsung Galaxy M31 here.

  • Does Samsung Galaxy M31 have an in-built app lock?

    A

    Answered By Avinash Sharma | 5 months ago

    Samsung devices come with an In-Built application for App Lock.

    The device comes with a Pre-Installed application namely 'Secure Folder'.

    This is a application which is stock for Samsung Applications.

    However, if your device does not come with this application, you can easily download a Third Party application from Play store.

    Also, do not forget to find all the detailed specifications and other latest updates related to Samsung Galaxy M31 here

  • Does Samsung Galaxy M31 support slow-motion video recording?

    V

    Answered By Vinith Rs | 4 months ago
    Yes, Samsung M31 supports slow- motion and it has a super slow-mo option ;-)
View all Popular Questions