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Xiaomi Redmi Note 9 vs Samsung Galaxy M21 vs Xiaomi Mi A2

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Last Updated: 
28th Aug 2020

Key Feature Comparison

Xiaomi Redmi Note 9
₹10,999
8/10
Samsung Galaxy M21
₹12,699
8/10
Xiaomi Mi A2
₹12,599
8/10
Xiaomi Redmi Note 9
Xiaomi Redmi Note 9
8/10
₹10,999
8/10
VS
Samsung Galaxy M21
Samsung Galaxy M21
8/10
₹12,699
8/10
VS
Xiaomi Mi A2
Xiaomi Mi A2
8/10
₹12,599
8/10
Display
Screen Size
6.53 inches
6.4 inches
5.99 inches
Screen Type
IPS LCD
Super AMOLED
IPS LCD
Screen Resolution
1080 x 2340 pixels
1080 x 2340 pixels
1080 x 2160 pixels
Pixel Density
395 ppi
403 ppi
403 ppi
Aspect Ratio
19.5:9
19.5:9
18:09
Screen Protection
Corning Gorilla Glass v5
Corning Gorilla Glass v3
Corning Gorilla Glass v5
Screen to Body Ratio
84.37%
91%
77.38%
Screen Design
Punch-Hole Display
Waterdrop Notch
Bezel-less
Screen Refresh Rate
60 Hz
-
-
Screen Quality
FHD
FHD
FHD
Peak Brightness
450 nits
420 nits
-
Performance
GPU
Mali-G52
Mali-G72 MP3
Adreno 512
Operating System
Android v10 (Q)
Android v10 (Q)
Android v8.1 (Oreo)
Chipset
MediaTek Helio G85
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 660
CPU
Octa core (2 GHz, Dual core, Cortex A75 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.2 GHz, Quad core, Kryo 260 + 1.84 GHz, Quad core, Kryo 260)
Custom User Interface
MIUI
Samsung One UI
Android One
Clock Speed
2 GHz
2.3 GHz
2.2 GHz
Architecture
64 bit
64 bit
64 bit
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
General
Announced On
30-Apr-20
18-Mar-20
5-Jul-18
Market Status
Available
Available
Available
Brand
Xiaomi
Samsung
Xiaomi
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 10,999
Rs. 13,499
Rs. 10,449
Memory & Storage
Phone Variants
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
64GB 4GB RAM, 128GB 6GB RAM
128 GB, 6 GB RAM or 32/64 GB, 4 GB RAM
Expandable Storage
Yes
Yes
No
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
eMMC 5.1
UFS 2.1
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
-
OTG Support
Yes
Yes
Yes
Battery
Battery Capacity
5020 mAh
6000 mAh
3010 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-Polymer
Charger Type
Fast, 22.5W
Fast, 15W
Quick, v4.0
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Design
IP Certification
Yes, Splash proof
-
-
Weight
200 grams
188 grams
168 grams
Colors
Pebble Grey, Arctic White, Aqua Green
Midnight Blue, Raven Black
Black, Gold, Red, Lake Blue, Rose Gold
Build
Glass front (Gorilla Glass 5), plastic frame
Back: Plastic
Back: Aluminium
Dimensions
161.4 x 76.7 x 8.7 mm
159 x 75.1 x 8.9 mm
158.7 x 75.4 x 7.3 mm
SAR Value
Head: 0.853 W/kg, Body: 0.433 W/kg
Head: 0.468 W/kg
Head: 1.092 W/kg, Body: 0.259 W/kg
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
NFC
Yes
No
No
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
No
Bluetooth Type
v5.0
v5.0
v5.0
Audio Jack
3.5 mm
3.5 mm
USB Type-C
Audio Features
-
Dolby Atmos
Active noise cancellation with dedicated mic
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR, panorama
HDR
LED flash, Auto-HDR
Front Camera Setup
Single, 13MP
Single, 20MP
Single, 20MP
Front Camera 1 Resolution
13 MP
20 MP
20 MP
Front Camera 1 Type
f/2.25 Primary Camera
f/2.2 Primary Camera
f/2.2 Primary Camera
Front Camera 1 Lens
3" sensor size, 1.12 micrometre pixel size
26 mm focal length
2.8" sensor size, 1 micrometre pixel size
Front Sensor
-
CMOS
Exmor RS
Front Flash
-
No
Yes, Soft light flash
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, a/b/g/n
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE
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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 850(band 5), 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) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
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...
Rear Camera
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 120 fps, 720x480 @ 30 fps
Rear Camera Features
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, 48MP + 8MP + 5MP
Dual, 12MP + 20MP
Rear Camera 1 Resolution
48 MP
48 MP
12 MP
Rear Camera 1 Type
f/1.79 Primary Camera
f/2.0 (upto 4x Digital Zoom) Primary Camera
f/1.75 Primary Camera
Rear Camera 1 Lens
2" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
2.9" sensor size, 1.25 micrometre pixel size
Rear Camera 2 Resolution
8 MP
8 MP
20 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/1.7 Camera
Rear Camera 2 Lens
4.0" sensor size
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
2.8" sensor size, 1 micrometre pixel size
Rear Camera 3 Resolution
2 MP
5 MP
-
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.2, Depth Camera
-
Rear Camera 3 Lens
1.75 micrometre pixel size
-
-
Rear Camera 4 Resolution
2 MP
-
-
Rear Camera 4 Type
f/2.4, Depth Camera
-
-
Rear Camera 4 Lens
5.0" sensor size
-
-
Rear Sensor
ISOCELL Plus
CMOS image sensor
Exmor-RS CMOS Sensor
OIS
-
No
No
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Rear
Rear
Rear

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