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Xiaomi Redmi Note 9 vs Samsung Galaxy A31 vs Samsung Galaxy M31

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Last Updated: 
14th Jan 2021

Key Feature Comparison

Xiaomi Redmi Note 9
₹11,974
8/10
Samsung Galaxy A31
₹17,999
8/10
Samsung Galaxy M31
₹15,999
8/10
Xiaomi Redmi Note 9
Xiaomi Redmi Note 9
8/10
₹11,974
8/10
VS
Samsung Galaxy A31
Samsung Galaxy A31
8/10
₹17,999
8/10
VS
Samsung Galaxy M31
Samsung Galaxy M31
8/10
₹15,999
8/10
Display
Screen Size
6.53 inches
6.4 inches
6.4 inches
Display Type
IPS LCD capacitive touchscreen
Super AMOLED capacitive touchscreen
Super AMOLED capacitive touchscreen
Display Resolution
1080 x 2340 pixels
1080 x 2400 pixels
1080 x 2340 pixels
Pixel Density
395 ppi
411 ppi
411 ppi
Aspect Ratio
19.5:9
20:09
19.5:9
Protection
Corning Gorilla Glass 5
-
Corning Gorilla Glass 3
Screen to Body Ratio
83.50%
84.90%
84.1%
Battery
Battery Capacity
5020 mAh battery
5000 mAh battery
6000 mAh battery
User Replaceable
Non-removable
Non-removable
Non-removable
Charging
Fast charging 18WReverse charging 9W
Fast charging 15W
Fast battery charging 15W
Battery Type
Li-Po
Li-Po
Li-Po
Launch
Announced On
2020, April 30
2020, March 24
2020, February 25
Status
Available. Released 2020, July 24
Available. Released 2020, June 04
Available. Released 2020, March 04
Front Camera
Single Camera
13 MP, f/2.3, 29mm (normal), 1/3.1, 1.12 micron
20 MP, f/2.2, (wide)
32 MP, f/2.0, 26mm (wide), 1/2.8, 0.8 micron
Front Camera Video
1080p30fps
1080p30fps
1080p30fps
Front Camera Features
HDR, panorama
-
HDR
Memory & Storage
RAM/Internal Storage
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
128GB 6GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Expandable Memory
microSDXC (dedicated slot)
microSDXC (dedicated slot), Up to 512GB Expandable
microSDXC (dedicated slot)
Performance
GPU
Mali-G52 MC2
-
Mali-G72 MP3
OS
Android 10 MIUI 11
Android 10, One UI 2.0
Android 10, One UI 2.5
Chipset GP
MediaTek Helio G85 (12nm)
-
Exynos 9611 (10nm)
CPU
Octa-core (2x2.0 GHz Cortex-A75, 6x1.8 GHz Cortex-A55)
Octa-core (2x2.0 GHz, 6x1.7 GHz)
Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
Miscellaneous Features
Sensors
Fingerprint (rear-mounted), G-sensor/Gyroscope/L-Sensor/P-Sensor/E-Campass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Water Resistant
Splash-proof nano coating
-
-
Design
Height
6.39 inches
6.27 inches
6.29 inches
Width
3.04 inches
2.88 inches
2.96 inches
Thickness
0.35 inches
0.34 inches
0.35 inches
Weight
200 g
185 g
191 g
Color
Arctic White, Aqua Green, Pebble Grey, Scarlet Red
Prism Crush Black, Prism Crush Blue, Prism Crush White
Ocean Blue, Space Black
Build
Glass front (Gorilla Glass 5), plastic frame
-
Glass front (Gorilla Glass 3), plastic back, plastic frame
Communications
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS
Yes, with A-GPS, GLONASS, GALILEO, BDS
Yes, with A-GPS, GLONASS, BDS
Radio
Unspecified
FM radio, RDS, recording
FM radio, RDS, recording
USB
2.0, Type-C 1.0 reversible connector
2.0, Type-C 1.0 reversible connector, USB On-The-Go
2.0, Type-C 1.0 reversible connector
NFC
Yes
Yes
-
SIM
Dual SIM (Nano-SIM, dual stand-by)
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Dual SIM (Nano-SIM, dual stand-by)
Network Support
GSM / HSPA / LTE
GSM / HSPA / LTE
GSM / HSPA / LTE
Sound
HeadPhone Jack
Yes
Yes
Yes
Loudspeaker
Yes
Yes
Yes
Audio Features
-
Dolby Atmos
Dolby Atmos
Back Camera
Quad Camera
48 MP, f/1.8, 26mm (wide), 1/2.0, 0.8 micron8 MP, f/2.2, 118degree (ultrawide), 1/4.0, 1.12 micron2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron8 MP, f/2.2, 13mm (ultrawide), 1/4.0, 1.12 micron5 MP, f/2.4, (macro)5 MP, f/2.4, (depth)
-
Autofocus
PDAF, AF
PDAF
PDAF
Back Camera Video
1080p30fps
1080p30fps
2160p30fps, 1080p30fps, gyro-EIS
Back Camera Features
LED flash, HDR, panorama
LED flash, panorama, HDR
LED flash, panorama, HDR
General
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
5.0, A2DP, LE

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