Samsung Galaxy M31 vs Xiaomi Mi 9 vs Samsung Galaxy M40
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Last Updated:
15th May 2020
Key Feature Comparison
Samsung Galaxy M31
₹13,999
8/10
Xiaomi Mi 9
7/10
Samsung Galaxy M40
₹19,999
8/10
Samsung Galaxy M31
8/10
₹13,999
8/10
VS
Xiaomi Mi 9
7/10
7/10
VS
Samsung Galaxy M40
8/10
₹19,999
8/10
Display
Screen Size
6.4 inches
6.39 inches
6.3 inches
Screen Type
Super AMOLED
AMOLED
-
Screen Resolution
1080 x 2340 pixels
1080 x 2340 pixels
1080 x 2340 pixels
Pixel Density
403 ppi
403 ppi
409 ppi
Aspect Ratio
19.5:9
19.5:9
19.5:9
Screen Protection
Gorilla Glass 3
Gorilla Glass 6
Gorilla Glass 3
Screen to Body Ratio
83.92%
90.70%
91.80%
Screen Design
Regular notch
Waterdrop notch
Punch hole
Screen Quality
FHD
FHD
FHD
Memory & Storage
Phone Variants
6GB 64GB, 8GB 128GB, 6GB 128GB
6GB 128GB
6GB 128GB
Expandable Storage
Yes
No
Yes
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.1
-
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
-
Yes, 512 GB
OTG Support
Yes
-
Yes
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
Operating System
Android v10 (Q)
Android v9.0 (Pie)
Android v9.0 (Pie)
GPU
Mali-G72 MP3
Adreno 640
Adreno 612
Chipset
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 855
Qualcomm Snapdragon 675
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.84 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
Octa core (2 GHz, Dual core, Kryo 460 + 1.7 GHz, Hexa Core, Kryo 460)
Custom User Interface
Samsung One UI
MIUI
Samsung One UI
Clock Speed
2.3 GHz
2.84 GHz
2 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
10 nm
-
11 nm
Battery
Battery Capacity
6000 mAh
3300 mAh
3500 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 15W
Quick, v4.0
Fast, 15W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Wireless Charging
-
Yes
-
General
Announced On
25-Feb-20
5-Feb-19
5-Jun-19
Market Status
Available
Not Released in India
Available
Brand
Samsung
Xiaomi
Samsung
Price Status
Confirmed
Expected
Confirmed
Price
Rs. 15,999
Rs. 42,800
Rs. 15,999
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Active noise cancellation with dedicated mic
Dolby Atmos
NFC
No
Yes
Yes
Bluetooth
Yes
Yes
Yes
FM Radio
Yes
-
Yes
3.5mm Audio Jack
Yes
No
No
Bluetooth Type
v5.0
v5.0
v5.0
Audio Jack
3.5 mm
USB Type-C
USB Type-C
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
HDR
HDR
Front Camera Setup
Single, 32MP
Single, 20MP
Single, 16MP
Front Camera 1 Resolution
32 MP
20 MP
16 MP
Front Camera 1 Type
f/2.0 Primary Camera
f/2.0 Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
-
-
Front Sensor
Exmor RS
-
CMOS
Front Aperture
f/2.0
f/2.0
f/2.0
Front Flash
No
Yes, Screen flash
No
Design
Weight
191 grams
173 grams
168 grams
Colors
Black, Blue
Deep Gray, Holographic Illusion Blue, Holographic Illusion
Midnight Blue, Seawater Blue, Cocktail Orange
Build
Back: Plastic
Back glass (Gorilla Glass 5), aluminum frame (7000 series)
Back: Plastic
Dimensions
159.2 x 75.1 x 8.9 mm
157.5 x 74.6 x 7.6 mm
155.3 x 73.9 x 7.9 mm
SAR Value
Head: 0.383 W/kg
-
Head: 0.200 W/kg
Rear Camera
OIS
No
-
No
Rear Flash
Yes, LED Flash
Yes, Dual-color LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
3840x2160 @ 30 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 64MP + 8MP + 5MP + 5MP
Triple, 48MP + 12MP + 16MP
Triple, 32MP + 8MP + 5MP
Rear Camera 1 Resolution
64 MP
48 MP
32 MP
Rear Camera 1 Type
f/1.8 (upto 8x Digital Zoom) Primary Camera
f/1.75 Primary Camera
f/1.7 (upto 8x Digital Zoom) Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
-
2.8" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
8 MP
12 MP
8 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2 Telephoto (upto 2x Optical Zoom) Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 2 Lens
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
1 micrometre pixel size
12 mm focal length
Rear Camera 3 Resolution
5 MP
16 MP
5 MP
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Depth Camera
Rear Camera 3 Lens
25 mm focal length, 5.0" sensor size, 1.12 micrometre pixel size
1 micrometre pixel size
-
Rear Camera 4 Resolution
5 MP
-
-
Rear Camera 4 Type
f/2.2, Depth Camera
-
-
Rear Sensor
ISOCELL Plus
Exmor-RS CMOS Sensor
CMOS image sensor
Rear Aperture
f/1.8
f/1.75
f/1.7
Network
Network Support
4G
4G
4G
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano (Hybrid)
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, a/ac/b/g/n/n 5GHz
SIM Slot(s)
Dual SIM, GSM+GSM, Dual VoLTE
Dual SIM, GSM+GSM, Dual VoLTE
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 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...
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) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17), 3G Bands: UMTS 1900 / 2100 / 8...
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...
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 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G...
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...
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Rear
On-Screen
Rear
Fingerprint Scanner Type
-
Optical
-
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