Samsung Galaxy M31s vs Samsung Galaxy M21 vs Xiaomi Mi 9 Pro
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Last Updated:
14th Sep 2020
Key Feature Comparison
Samsung Galaxy M31s
₹18,499
8/10
Samsung Galaxy M21
₹12,499
8/10
Xiaomi Mi 9 Pro
8/10
Samsung Galaxy M31s
8/10
₹18,499
8/10
VS
Samsung Galaxy M21
8/10
₹12,499
8/10
VS
Xiaomi Mi 9 Pro
8/10
8/10
Display
Screen Size
6.5 inches
6.4 inches
6.39 inches
Screen Type
Super AMOLED
Super AMOLED
Super AMOLED
Screen Resolution
1080 x 2400 pixels
1080 x 2340 pixels
1080 x 2280 pixels
Pixel Density
405 ppi
403 ppi
395 ppi
Aspect Ratio
20:09
19.5:9
19.5:9
Screen Protection
Corning Gorilla Glass v3
Corning Gorilla Glass v3
Corning Gorilla Glass v6
Screen to Body Ratio
91%
91%
86.48%
Screen Design
Punch-Hole Display
Waterdrop Notch
Waterdrop Notch
Screen Refresh Rate
60 Hz
-
-
Screen Quality
FHD
FHD
FHD
Peak Brightness
420 nits
420 nits
-
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Performance
GPU
Mali-G72 MP3
Mali-G72 MP3
Adreno 640
Operating System
Android v10 (Q)
Android v10 (Q)
Android v9.0 (Pie)
Chipset
Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 855 Plus
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.96 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
Custom User Interface
Samsung One UI
Samsung One UI
MIUI
Clock Speed
2.3 GHz
2.3 GHz
2.96 GHz
Architecture
64 bit
64 bit
64 bit
Memory & Storage
Phone Variants
128GB 6GB RAM, 128GB 8GB RAM
64GB 4GB RAM, 128GB 6GB RAM
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Expandable Storage
Yes
Yes
No
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.1
UFS 2.1
-
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
-
OTG Support
-
Yes
-
General
Announced On
30-Jul-20
18-Mar-20
5-Sep-19
Market Status
Available
Available
Upcoming
Brand
Samsung
Samsung
Xiaomi
Price Status
Confirmed
Confirmed
Expected
Price
Rs. 18,499
Rs. 13,499
Rs. 36,890
Battery
Battery Capacity
6000 mAh
6000 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 25W
Fast, 15W
Quick, v4.0
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Dolby Atmos
Active noise cancellation with dedicated mic
NFC
No
No
Yes
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
Front Camera
Front Video Recording
3840x2160 @ 30 fps
1920x1080 @ 30 fps
1080p30fps
Front Camera Features
HDR
HDR
HDR
Front Camera Setup
Single, 32MP
Single, 20MP
Single, 20MP
Front Camera 1 Resolution
32 MP
20 MP
20 MP
Front Camera 1 Type
f/2.2 Primary Camera
f/2.2 Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
26 mm focal length
0.9 micrometre pixel size
Front Sensor
Exmor RS
CMOS
-
Front Flash
No
No
Yes, Screen flash
Design
Weight
203 grams
188 grams
196 grams
Colors
Mirage Black, Mirage Blue
Midnight Blue, Raven Black
Dream White, Titanium Black
Build
Back: Plastic
Back: Plastic
Back glass (Gorilla Glass 6), aluminum frame (7000 series)
Dimensions
159.3 x 74.4 x 9.3 mm
159 x 75.1 x 8.9 mm
157.2 x 74.6 x 8.9 mm
SAR Value
Head: 1.38 W/kg
Head: 0.468 W/kg
-
Rear Camera
OIS
No
No
Yes
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
-
Rear Camera Features
10 x 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, 64MP + 12MP + 5MP + 5MP
Triple, 48MP + 8MP + 5MP
Triple, 48MP + 12MP + 16MP
Rear Camera 1 Resolution
64 MP
48 MP
48 MP
Rear Camera 1 Type
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera
f/2.0 (upto 4x 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
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
12 MP
8 MP
12 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 Telephoto Camera
Rear Camera 3 Resolution
5 MP
5 MP
16 MP
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.2, Depth Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 4 Resolution
5 MP
-
-
Rear Camera 4 Type
f/2.4, Depth Camera
-
-
Rear Sensor
Exmor-RS CMOS Sensor
CMOS image sensor
Exmor-RS CMOS Sensor
Rear Camera 2 Lens
-
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
3.6" sensor size, 1 micrometre pixel size
Network
Network Support
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
5G supported by device (network not rolled-out in India), 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, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/ac/b/g/n, MIMO
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
eSIM
No
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
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 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 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...
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 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 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...
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Side
Rear
On-screen
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