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Samsung Galaxy A51 vs Samsung Galaxy M31 vs Samsung Galaxy S9

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Last Updated: 
28th Aug 2020

Key Feature Comparison

Samsung Galaxy A51
₹22,999
8/10
Samsung Galaxy M31
₹13,999
8/10
Samsung Galaxy S9
₹24,999
8/10
Samsung Galaxy A51
Samsung Galaxy A51
8/10
₹22,999
8/10
VS
Samsung Galaxy M31
Samsung Galaxy M31
8/10
₹13,999
8/10
VS
Samsung Galaxy S9
Samsung Galaxy S9
8/10
₹24,999
8/10
Display
Screen Size
6.5 inches
6.4 inches
5.8 inches
Screen Type
Super AMOLED
Super AMOLED
Super AMOLED
Screen Resolution
1080 x 2400 pixels
1080 x 2340 pixels
1440 x 2960 pixels
Pixel Density
405 ppi
403 ppi
568 ppi
Aspect Ratio
20:09
19.5:9
18.5:9
Screen Protection
Corning Gorilla Glass v3
Corning Gorilla Glass v3
Corning Gorilla Glass v5
Screen to Body Ratio
87.44%
83.92%
84.51%
Screen Design
Punch-Hole Display
Notch
Bezel-less
Screen Quality
FHD
FHD
2K
Performance
GPU
Mali-G72 MP3
Mali-G72 MP3
Mali-G72 MP18
Operating System
Android v10 (Q)
Android v10 (Q)
Android v8.0 (Oreo)
Chipset
Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 9810
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 (2.7 GHz, Quad core, M2 Mongoose + 1.7 GHz, Quad core, Cortex A53)
Custom User Interface
Samsung One UI
Samsung One UI
-
Clock Speed
2.3 GHz
2.3 GHz
2.7 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
10 nm
10 nm
10 nm
Memory & Storage
Phone Variants
128GB 6GB RAM, 128GB 8GB RAM
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
64/128/256 GB, 4 GB 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, 400 GB
OTG Support
Yes
Yes
Yes
Battery
Battery Capacity
4000 mAh
6000 mAh
3000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 15W
Fast, 15W
Fast
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
General
Announced On
5-Dec-19
25-Feb-20
5-Feb-18
Market Status
Available
Available
Available
Brand
Samsung
Samsung
Samsung
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 20,450
Rs. 15,999
Rs. 33,999
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, rgbw sensor, Accelerometer, Barometer, Compass, Gyroscope
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Dolby Atmos
Dolby Atmos
NFC
Yes
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
FM Radio
-
Yes
No
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
1440p30fps
Front Camera Features
HDR
HDR
Wide Angle Selfie
Front Camera Setup
Single, 32MP
Single, 32MP
Single, 8MP
Front Camera 1 Resolution
32 MP
32 MP
8 MP
Front Camera 1 Type
f/2.2 Primary Camera
f/2.0 Primary Camera
f/1.7, Wide Angle Primary Camera
Front Camera 1 Lens
2.8" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
25 mm focal length, 3.6" sensor size, 1.22 micrometre pixel size
Front Aperture
f/2.2
f/2.0
f/1.7
Front Flash
No
No
-
Front Sensor
-
Exmor RS
-
Design
Weight
172 grams
191 grams
163 grams
Colors
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue
Black, Blue
Midnight Black, Coral Blue, Lilac Purple
Build
Back: Plastic
Back: Plastic
Back: Gorilla Glass
Dimensions
158.5 x 73.6 x 7.9 mm
159.2 x 75.1 x 8.9 mm
147.7 x 68.7 x 8.5 mm
SAR Value
Head: 0.598 W/kg
Head: 0.383 W/kg
-
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 (Hybrid)
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/n 5GHz, MIMO
SIM Slot(s)
Dual SIM, GSM+GSM
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) / 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 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), FD-LTE 1800(band 3), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, 4G Speed: 200 Mbit/s 1200 Mbit/s (LTE category 18), 3G Speed: HSDPA 42.2 Mbit/s , HSUPA 5.76 Mbit/s , GPRS: ...
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), 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), FD-LTE 1800(band 3), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, 4G Speed: 200 Mbit/s 1200 Mbit/s (LTE category 18), 3G Speed: HSDPA 42.2 Mbit/s , GPRS: Available, EDGE: Ava...
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, 1280x720 @ 240 fps
3840x2160 @ 60 fps, 1920x1080 @ 60 fps, 1280x720 @ 30 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
8 x Digital Zoom, Auto Flash, Digital image stabilization, Face detection, Simultaneous HD video and image recording, Touch to focus
Rear Camera Setup
Quad, 48MP + 12MP + 5MP + 5MP
Quad, 64MP + 8MP + 5MP + 5MP
Single, 12MP
Rear Camera 1 Resolution
48 MP
64 MP
12 MP
Rear Camera 1 Type
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.8 (upto 8x Digital Zoom) Primary Camera
f/2.4 (upto 8x Digital Zoom), Wide Angle Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.55" sensor size, 1.4 micrometre pixel size
Rear Camera 2 Resolution
12 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
-
Rear Camera 3 Resolution
5 MP
5 MP
-
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.4, Macro Camera
-
Rear Camera 4 Resolution
5 MP
5 MP
-
Rear Camera 4 Type
f/2.2, Depth Camera
f/2.2, Depth Camera
-
Rear Sensor
ISO-CELL
ISOCELL Plus
CMOS image sensor, ISOCELL Plus
Rear Aperture
f/2.0
f/1.8
f/2.4
Rear Camera 2 Lens
-
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
-
Rear Camera 3 Lens
-
25 mm focal length, 5.0" sensor size, 1.12 micrometre pixel size
-
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
On-screen
Rear
Rear
Fingerprint Scanner Type
Optical
-
-

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