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Samsung Galaxy M31s vs Samsung Galaxy A20S vs Samsung Galaxy M21

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Last Updated: 
25th Aug 2020

Key Feature Comparison

Samsung Galaxy M31s
₹18,499
8/10
Samsung Galaxy A20s
₹11,599
7/10
Samsung Galaxy M21
₹12,499
8/10
Samsung Galaxy M31s
Samsung Galaxy M31s
8/10
₹18,499
8/10
VS
Samsung Galaxy A20s
Samsung Galaxy A20s
7/10
₹11,599
7/10
VS
Samsung Galaxy M21
Samsung Galaxy M21
8/10
₹12,499
8/10
Display
Screen Size
6.5 inches
6.5 inches
6.4 inches
Screen Type
Super AMOLED
TFT
Super AMOLED
Screen Resolution
1080 x 2400 pixels
720 x 1560 pixels
1080 x 2340 pixels
Pixel Density
405 ppi
264 ppi
403 ppi
Aspect Ratio
20:09
19.5:9
19.5:9
Screen Protection
Corning Gorilla Glass v3
-
Corning Gorilla Glass v3
Screen to Body Ratio
91%
81.77%
91%
Screen Design
Punch-Hole Display
Notch
Waterdrop Notch
Screen Refresh Rate
60 Hz
-
-
Screen Quality
FHD
HD
FHD
Peak Brightness
420 nits
-
420 nits
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Performance
GPU
Mali-G72 MP3
Adreno 506
Mali-G72 MP3
Operating System
Android v10 (Q)
Android v9.0 (Pie)
Android v10 (Q)
Chipset
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 450
Samsung Exynos 9 Octa 9611
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core, 1.8 GHz, 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
2.3 GHz
1.8 GHz
2.3 GHz
Architecture
64 bit
64 bit
64 bit
Memory & Storage
Phone Variants
128GB 6GB RAM, 128GB 8GB RAM
32GB 3GB RAM, 64GB 4GB RAM
64GB 4GB RAM, 128GB 6GB RAM
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
-
LPDDR4X
Storage Type
UFS 2.1
eMMC 5.1
UFS 2.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
Yes, 512 GB
OTG Support
-
Yes
Yes
General
Announced On
30-Jul-20
24-Sep-19
18-Mar-20
Market Status
Available
Available
Available
Brand
Samsung
Samsung
Samsung
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 18,499
Rs. 12,900
Rs. 13,499
Battery
Battery Capacity
6000 mAh
4000 mAh
6000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 25W
Fast, 15W
Fast, 15W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Dolby Atmos
Dolby Atmos
NFC
No
No
No
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
Bluetooth Type
v5.0
v4.2
v5.0
Audio Jack
3.5 mm
3.5 mm
3.5 mm
Front Camera
Front Video Recording
3840x2160 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
-
HDR
Front Camera Setup
Single, 32MP
Single, 8MP
Single, 20MP
Front Camera 1 Resolution
32 MP
8 MP
20 MP
Front Camera 1 Type
f/2.2 Primary Camera
f/2.0 Primary Camera
f/2.2 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
-
26 mm focal length
Front Sensor
Exmor RS
-
CMOS
Front Flash
No
No
No
Design
Weight
203 grams
183 grams
188 grams
Colors
Mirage Black, Mirage Blue
Black, Blue, Green
Midnight Blue, Raven Black
Build
Back: Plastic
Back: Plastic
Back: Plastic
Dimensions
159.3 x 74.4 x 9.3 mm
163.3 x 77.5 x 8 mm
159 x 75.1 x 8.9 mm
SAR Value
Head: 1.38 W/kg
Head: 0.27 W/kg
Head: 0.468 W/kg
Rear Camera
OIS
No
No
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps
1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
Rear Camera Features
10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 64MP + 12MP + 5MP + 5MP
Triple, 13MP + 8MP + 5MP
Triple, 48MP + 8MP + 5MP
Rear Camera 1 Resolution
64 MP
13 MP
48 MP
Rear Camera 1 Type
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera
f/1.8 (upto 4x Digital Zoom) Primary Camera
f/2.0 (upto 4x Digital Zoom) Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
27 mm focal length
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
12 MP
8 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/2.2, Depth Camera
f/2.2, Depth Camera
Rear Camera 4 Resolution
5 MP
-
-
Rear Camera 4 Type
f/2.4, Depth Camera
-
-
Rear Sensor
Exmor-RS CMOS Sensor
CMOS image sensor
CMOS image sensor
Network
Network Support
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
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, b/g/n
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
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
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 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39), 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 / 8...
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:...
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 17) / 800(band 20) / 850(band 26), 3G Bands: UMTS 19...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39), 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) / 800(band 20), 3G Bands: UMTS ...
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:...
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Side
Rear
Rear

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