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Samsung Galaxy A21 vs Samsung Galaxy A21S vs Samsung Galaxy M31

- Updated: 12th Jan 2021, 17:19 IST

Key Feature Comparison

Samsung Galaxy A21

Samsung Galaxy A21s

Samsung Galaxy M31

Show differences only

At a Glance

Octa core, 2.3 GHz, Cortex A53

MediaTek Helio P35, PowerVR GE8320

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

4000 mAh

Li-ion, Fast, 15W

5000 mAh

Li-ion, Fast, 15W

6000 mAh

Li-ion, Fast, 15W

6.5 inches

270 ppi

6.5 inches

270 ppi

6.4 inches

403 ppi, FHD

Quad, 16MP + 8MP + 2MP + 2MP

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

1920x1080 @ 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

6.5 inches

6.5 inches

6.4 inches

Screen Type

Super AMOLED

TFT

Super AMOLED

Screen Resolution

720 x 1600 pixels

720 x 1600 pixels

1080 x 2340 pixels

Pixel Density

270 ppi

270 ppi

403 ppi

Aspect Ratio

20:09

20:09

19.5:9

Screen to Body Ratio

79.26%

82.75%

83.92%

Screen Design

Punch hole

Punch hole

Regular notch

Phone Variants

3GB 32GB

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

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

Expandable Storage

Yes

Yes

Yes

RAM Type

LPDDR4X

LPDDR4X

LPDDR4X

Storage Type

eMMC 5.1

eMMC 5.1

UFS 2.1

Expandable Storage Capacity

Yes, 512 GB

Yes, 512 GB

Yes, 512 GB

OTG Support

-

Yes

Yes

Sensors

Light sensor, Proximity sensor, Accelerometer

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

PowerVR GE8320

Mali-G52 MP1

Mali-G72 MP3

Chipset

MediaTek Helio P35

Samsung Exynos 8 Octa 850

Samsung Exynos 9 Octa 9611

CPU

Octa core, 2.3 GHz, Cortex A53

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)

Clock Speed

2.3 GHz

2 GHz

2.3 GHz

Architecture

64 bit

64 bit

64 bit

Process Technology

12 nm

8 nm

10 nm

Custom User Interface

-

Samsung One UI

Samsung One UI

Battery Capacity

4000 mAh

5000 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

8-Apr-20

15-May-20

25-Feb-20

Market Status

Launched Globally

Available

Available

Brand

Samsung

Samsung

Samsung

Price Status

Expected

Confirmed

Confirmed

Price

Rs. 18,900

Rs. 13,999

Rs. 15,999

Model Number

-

SM-A217FZB1INS/SM-A217FZBGINS/SM-A217FZB5INS

SM-M315FZKDINS

GPS

Yes A-GPS, Glonass

Yes A-GPS, Glonass

Yes A-GPS, Glonass

NFC

Yes

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

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

Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

VoLTE

Yes

Yes

Yes

SIM 1 Bands

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) / 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) / 850(band 26), 3G...

SIM 2 Bands

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) / 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) / 850(band 26), 3G...

Front Video Recording

1080p at 30fps

1920x1080 @ 30 fps

1920x1080 @ 30 fps

Front Camera Setup

Single, 13MP

Single, 13MP

Single, 32MP

Front Camera 1 Resolution

13 MP

13 MP

32 MP

Front Camera 1 Type

Primary Camera

f/2.2 Primary Camera

f/2.0 Primary Camera

Front Camera 1 Lens

-

3.1" sensor size, 1.12 micrometre pixel size

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

Front Aperture

-

f/2.2

f/2.0

Front Flash

-

No

No

Weight

193 grams

192 grams

191 grams

Colors

Black

Black, Blue, White

Black, Blue

Build

Back: Plastic

Back: Plastic

Back: Plastic

Dimensions

167.8 x 76.7 x 8.1 mm

163.7 x 75.3 x 8.9 mm

159.2 x 75.1 x 8.9 mm

SAR Value

-

Head: 0.831 W/kg

Head: 0.383 W/kg

Rear Flash

Yes, LED Flash

Yes, LED Flash

Yes, LED Flash

Rear Camera Features

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, 16MP + 8MP + 2MP + 2MP

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

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

Rear Camera 1 Resolution

16 MP

48 MP

64 MP

Rear Camera 1 Type

Primary Camera

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

f/1.8 (upto 8x Digital Zoom) Primary Camera

Rear Camera 2 Resolution

8 MP

8 MP

8 MP

Rear Camera 2 Type

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

2 MP

5 MP

Rear Camera 3 Type

Macro Camera

f/2.4, Macro Camera

f/2.4, Macro Camera

Rear Camera 4 Resolution

2 MP

2 MP

5 MP

Rear Camera 4 Type

Depth Camera

f/2.4, Depth Camera

f/2.2, Depth Camera

OIS

-

No

No

Rear Video Recording

-

1920x1080 @ 30 fps

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

Rear Camera 1 Lens

-

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

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

Rear Camera 2 Lens

-

4.0" sensor size, 1.12 micrometre pixel size

12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size

Rear Aperture

-

f/2.0

f/1.8

Fingerprint Scanner

Yes

Yes

Yes

Fingerprint Scanner Position

Rear

Rear

Rear

Face Unlock

Yes

Yes

Yes

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