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Samsung Galaxy M31s vs Xiaomi Redmi Note 9 Pro Max vs Redmi K20

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Last Updated: 
3rd Dec 2020

Key Feature Comparison

Samsung Galaxy M31s
₹18,999
8/10
Xiaomi Redmi Note 9 Pro Max
₹15,499
8/10
Xiaomi Redmi K20
₹17,998
8/10
Samsung Galaxy M31s
Samsung Galaxy M31s
8/10
₹18,999
8/10
VS
Xiaomi Redmi Note 9 Pro Max
Xiaomi Redmi Note 9 Pro Max
8/10
₹15,499
8/10
VS
Xiaomi Redmi K20
Xiaomi Redmi K20
8/10
₹17,998
8/10
Display
Screen Size
6.5 inches
6.67 inches
6.39 inches
Screen Type
Super AMOLED
IPS LCD
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 v5
Screen to Body Ratio
91%
84.73%
91.90%
Screen Design
Punch-Hole Display
Punch-Hole Display
Bezel-less
Screen Refresh Rate
60 Hz
60 Hz
-
Screen Quality
FHD
FHD
FHD
Peak Brightness
420 nits
450 nits
-
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Performance
GPU
Mali-G72 MP3
Adreno 618
Adreno 618
Operating System
Android v10 (Q)
Android v10 (Q)
Android v9.0 (Pie)
Chipset
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 720G
Qualcomm Snapdragon 730
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 (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Custom User Interface
Samsung One UI
MIUI
MIUI
Clock Speed
2.3 GHz
2.3 GHz
2.2 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
10 nm
8 nm
8 nm
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
Expandable Storage
Yes
Yes
No
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.1
UFS 2.1
UFS 2.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
-
OTG Support
-
Yes
Yes
General
Announced On
30-Jul-20
12-Mar-20
5-May-19
Market Status
Available
Available
Available
Brand
Samsung
Xiaomi
Xiaomi
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 18,499
Rs. 14,569
Rs. 19,450
Battery
Battery Capacity
6000 mAh
5020 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-Polymer
Li-Polymer
Charger Type
Fast, 25W
Fast, 33W
Quick, v3.0, 18W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Charging Time
-
50 % in 30 minutes
-
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
-
24-bit/192kHz audioActive noise cancellation with dedicated mic
NFC
No
No
Yes
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
3840x2160 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
Front Camera Features
HDR
HDR, panorama
HDR
Front Camera Setup
Single, 32MP
Single, 32MP
Single, 20MP
Front Camera 1 Resolution
32 MP
32 MP
20 MP
Front Camera 1 Type
f/2.2 Primary Camera
Primary Camera
f/2.2 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
1.6 micrometre pixel size
0.8 micrometre pixel size
Front Sensor
Exmor RS
-
-
Front Aperture
f/2.2
-
f/2.2
Front Flash
No
-
-
Design
Weight
203 grams
209 grams
191 grams
Colors
Mirage Black, Mirage Blue
Aurora Blue , Glacier White, Interstellar Black , Champagne Gold
Carbon Black, Flame Red, Glacier Blue, Pearl White
Build
Back: Plastic
Back: Gorilla Glass
Back: Gorilla Glass
Dimensions
159.3 x 74.4 x 9.3 mm
165.5 x 76.6 x 8.8 mm
156.7 x 74.3 x 8.8 mm
SAR Value
Head: 1.38 W/kg
Head: 0.880 W/kg, Body: 0.475 W/kg
Head: 1.07 W/kg, Body: 0.723 W/kg
IP Certification
-
Yes, Splash proof
-
Rear Camera
OIS
No
-
-
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, Dual LED Flash
Rear Video Recording
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
Rear Camera Features
10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 64MP + 12MP + 5MP + 5MP
Quad, 64MP + 8MP + 5MP + 2MP
Triple, 48MP + 13MP + 8MP
Rear Camera 1 Resolution
64 MP
64 MP
48 MP
Rear Camera 1 Type
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera
f/1.89 (upto 10x Digital Zoom) Primary Camera
f/1.75 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
1.7" sensor size, 1.6 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
12 MP
8 MP
13 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 3 Resolution
5 MP
5 MP
8 MP
Rear Camera 3 Type
f/2.4, Macro Camera
Macro Camera
f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera
Rear Camera 4 Resolution
5 MP
2 MP
-
Rear Camera 4 Type
f/2.4, Depth Camera
Depth Camera
-
Rear Sensor
Exmor-RS CMOS Sensor
CMOS image sensor, ISOCELL Plus
Exmor-RS CMOS Sensor
Rear Aperture
f/1.8
f/1.89
f/1.75
Rear Camera 2 Lens
-
1.12 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size
Rear Camera 3 Lens
-
1.12 micrometre pixel size
4.0" sensor size, 1.12 micrometre pixel size
Rear Camera 4 Lens
-
1.75 micrometre pixel size
-
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, MIMO
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) / 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 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), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
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 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), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Side
Side
On-screen

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