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Samsung Galaxy A51 vs Xiaomi Redmi Note 9 Pro Max vs Samsung Galaxy M31

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Last Updated: 
10th Jul 2020

Key Feature Comparison

Samsung Galaxy A51
₹22,949
8/10
Xiaomi Redmi Note 9 Pro Max
₹14,999
8/10
Samsung Galaxy M31
₹15,999
8/10
Samsung Galaxy A51
Samsung Galaxy A51
8/10
₹22,949
8/10
VS
Xiaomi Redmi Note 9 Pro Max
Xiaomi Redmi Note 9 Pro Max
8/10
₹14,999
8/10
VS
Samsung Galaxy M31
Samsung Galaxy M31
8/10
₹15,999
8/10
Display
Screen Size
6.5 inches
6.67 inches
6.4 inches
Screen Type
Super AMOLED
IPS LCD
Super AMOLED
Screen Resolution
1080 x 2400 pixels
1080 x 2400 pixels
1080 x 2340 pixels
Pixel Density
405 ppi
395 ppi
403 ppi
Aspect Ratio
20:09
20:09
19.5:9
Screen Protection
Corning Gorilla Glass v3
Corning Gorilla Glass v5
Corning Gorilla Glass v3
Screen to Body Ratio
87.44%
84.73%
83.92%
Screen Design
Punch-Hole Display
Punch-Hole Display
Notch
Screen Quality
FHD
FHD
FHD
Screen Refresh Rate
-
60 Hz
-
Peak Brightness
-
450 nits
-
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
General
Announced On
5-Dec-19
12-Mar-20
25-Feb-20
Market Status
Available
Available
Available
Brand
Samsung
Xiaomi
Samsung
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 20,450
Rs. 14,569
Rs. 15,999
Battery
Battery Capacity
4000 mAh
5020 mAh
6000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-Polymer
Li-ion
Charger Type
Fast, 15W
Fast, 33W
Fast, 15W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Charging Time
-
50 % in 30 minutes
-
Performance
Operating System
Android v10 (Q)
Android v10 (Q)
Android v10 (Q)
GPU
Mali-G72 MP3
Adreno 618
Mali-G72 MP3
Chipset
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 720G
Samsung Exynos 9 Octa 9611
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Custom User Interface
Samsung One UI
MIUI
Samsung One UI
Clock Speed
2.3 GHz
2.3 GHz
2.3 GHz
Architecture
64 bit
64 bit
64 bit
Memory & Storage
Phone Variants
128GB 6GB RAM, 128GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.0
UFS 2.1
UFS 2.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
Yes, 512 GB
OTG Support
Yes
Yes
Yes
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
-
Dolby Atmos
NFC
Yes
No
No
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
Bluetooth Type
v5.0
v5.0
v5.0
Audio Jack
3.5 mm
3.5 mm
3.5 mm
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
HDR, panorama
HDR
Front Camera Setup
Single, 32MP
Single, 32MP
Single, 32MP
Front Camera 1 Resolution
32 MP
32 MP
32 MP
Front Camera 1 Type
f/2.2 Primary Camera
Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
2.8" sensor size, 0.8 micrometre pixel size
1.6 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
Front Flash
No
-
No
Design
Weight
172 grams
209 grams
191 grams
Colors
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue
Aurora Blue , Glacier White, Interstellar Black , Champagne Gold
Black, Blue
Build
Back: Plastic
Back: Gorilla Glass
Back: Plastic
Dimensions
158.5 x 73.6 x 7.9 mm
165.5 x 76.6 x 8.8 mm
159.2 x 75.1 x 8.9 mm
SAR Value
Head: 0.598 W/kg
Head: 0.880 W/kg, Body: 0.475 W/kg
Head: 0.383 W/kg
IP Certification
-
Yes, Splash proof
-
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, a/ac/b/g/n, MIMO
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, 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 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 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 Bands: UMTS 1...
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) / 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 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...
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) / 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...
Rear Camera
OIS
No
-
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
10 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, 48MP + 12MP + 5MP + 5MP
Quad, 64MP + 8MP + 5MP + 2MP
Quad, 64MP + 8MP + 5MP + 5MP
Rear Camera 1 Resolution
48 MP
64 MP
64 MP
Rear Camera 1 Type
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.89 (upto 10x Digital Zoom) Primary Camera
f/1.8 (upto 8x Digital Zoom) Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size
1.7" sensor size, 1.6 micrometre pixel size
26 mm focal length, 1.7" 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
Macro Camera
f/2.4, Macro Camera
Rear Camera 4 Resolution
5 MP
2 MP
5 MP
Rear Camera 4 Type
f/2.2, Depth Camera
Depth Camera
f/2.2, Depth Camera
Rear Sensor
ISO-CELL
CMOS image sensor, ISOCELL Plus
ISOCELL Plus
Rear Camera 2 Lens
-
1.12 micrometre pixel size
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
Rear Camera 3 Lens
-
1.12 micrometre pixel size
25 mm focal length, 5.0" sensor size, 1.12 micrometre pixel size
Rear Camera 4 Lens
-
1.75 micrometre pixel size
-
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
On-screen
Side
Rear
Fingerprint Scanner Type
Optical
-
-

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