Samsung Galaxy A21 vs Samsung Galaxy A21S vs Samsung Galaxy M31
Key Feature Comparison
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At a Glance
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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)
4000 mAh
5000 mAh
6000 mAh
6.5 inches
6.5 inches
6.4 inches
Quad, 16MP + 8MP + 2MP + 2MP
Quad, 48MP + 8MP + 2MP + 2MP
Quad, 64MP + 8MP + 5MP + 5MP
4G
4G
4G
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