Samsung Galaxy A21S vs Samsung Galaxy A20S vs Redmi Note 8
Key Feature Comparison
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At a Glance
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Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
Octa core, 1.8 GHz, Cortex A53
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
5000 mAh
4000 mAh
4000 mAh
6.5 inches
6.5 inches
6.3 inches
Quad, 48MP + 8MP + 2MP + 2MP
Triple, 13MP + 8MP + 5MP
Quad, 48MP + 8MP + 2MP + 2MP
4G
4G
4G
Detailed Specs
Screen Size
6.5 inches
6.5 inches
6.3 inches
Screen Type
TFT
TFT
IPS LCD
Screen Resolution
720 x 1600 pixels
720 x 1560 pixels
1080 x 2340 pixels
Pixel Density
270 ppi
264 ppi
409 ppi
Aspect Ratio
20:09
19.5:9
19.5:9
Screen to Body Ratio
82.75%
81.77%
90%
Screen Design
Punch hole
Regular notch
Waterdrop notch
Phone Variants
6GB 64GB, 4GB 64GB, 6GB 128GB
4GB 64GB, 3GB 32GB
4GB 64GB, 3GB 32GB, 6GB 128GB
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
-
LPDDR4X
Storage Type
eMMC 5.1
eMMC 5.1
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
Yes, 512 GB
OTG Support
Yes
Yes
Yes
Sensors
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v10 (Q)
Android v9.0 (Pie)
Android v9.0 (Pie)
GPU
Mali-G52 MP1
Adreno 506
Adreno 610
Chipset
Samsung Exynos 8 Octa 850
Qualcomm Snapdragon 450
Qualcomm Snapdragon 665
CPU
Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
Octa core, 1.8 GHz, Cortex A53
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
Custom User Interface
Samsung One UI
Samsung One UI
MIUI
Clock Speed
2 GHz
1.8 GHz
2 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
8 nm
14 nm
11 nm
Battery Capacity
5000 mAh
4000 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-Polymer
Charger Type
Fast, 15W
Fast, 15W
Fast, 18W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Announced On
15-May-20
24-Sep-19
5-Aug-19
Market Status
Available
Available
Available
Brand
Samsung
Samsung
Xiaomi
Model Number
SM-A217FZB1INS/SM-A217FZBGINS/SM-A217FZB5INS
SM-A207FZGDINS
MZB8189IN
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 13,999
Rs. 12,900
Rs. 12,499
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
NFC
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, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, b/g/n
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Bluetooth Type
v5.0
v4.2
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
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) / 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) / 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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
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) / 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) / 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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
Audio Features
-
Dolby Atmos
-
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps
Front Camera Setup
Single, 13MP
Single, 8MP
Single, 13MP
Front Camera 1 Resolution
13 MP
8 MP
13 MP
Front Camera 1 Type
f/2.2 Primary Camera
f/2.0 Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
3.1" sensor size, 1.12 micrometre pixel size
-
1.12 micrometre pixel size
Front Aperture
f/2.2
f/2.0
f/2.0
Front Flash
No
No
-
Weight
192 grams
183 grams
188 grams
Colors
Black, Blue, White
Black, Blue, Green
Nepture Blue, Moonlight White, Cosmic Purple, Space Black
Build
Back: Plastic
Back: Plastic
Back: Gorilla Glass
Dimensions
163.7 x 75.3 x 8.9 mm
163.3 x 77.5 x 8 mm
158.3 x 75.3 x 8.3 mm
SAR Value
Head: 0.831 W/kg
Head: 0.27 W/kg
Head: 1.13 W/kg, Body: 0.634 W/kg
OIS
No
No
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, Dual LED Flash
Rear Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 48MP + 8MP + 2MP + 2MP
Triple, 13MP + 8MP + 5MP
Quad, 48MP + 8MP + 2MP + 2MP
Rear Camera 1 Resolution
48 MP
13 MP
48 MP
Rear Camera 1 Type
f/2.0 (upto 8x Digital Zoom), Wide Angle Primary Camera
f/1.8 (upto 4x Digital Zoom) Primary Camera
f/1.79 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
27 mm focal length
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
8 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 2 Lens
4.0" sensor size, 1.12 micrometre pixel size
-
4.0" sensor size, 1.12 micrometre pixel size
Rear Camera 3 Resolution
2 MP
5 MP
2 MP
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.2, Depth Camera
f/2.4, Macro Camera
Rear Camera 4 Resolution
2 MP
-
2 MP
Rear Camera 4 Type
f/2.4, Depth Camera
-
f/2.4, Depth Camera
Rear Aperture
f/2.0
f/1.8
f/1.79
Rear Sensor
-
CMOS image sensor
ISOCELL Plus
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Rear
Rear
Rear
Face Unlock
Yes
Yes
Yes