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Samsung Galaxy M51 vs Samsung Galaxy M31s vs Oppo A71

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Last Updated: 
11th Sep 2020

Key Feature Comparison

Samsung Galaxy M51
₹22,999
8/10
Samsung Galaxy M31s
₹18,499
8/10
OPPO A71
₹12,580
7/10
Samsung Galaxy M51
Samsung Galaxy M51
8/10
₹22,999
8/10
VS
Samsung Galaxy M31s
Samsung Galaxy M31s
8/10
₹18,499
8/10
VS
OPPO A71
OPPO A71
7/10
₹12,580
7/10
Display
Screen Size
6.7 inches
6.5 inches
5.2 inches
Screen Type
Super AMOLED Plus
Super AMOLED
IPS LCD
Screen Resolution
1080 x 2400 pixels
1080 x 2400 pixels
720 x 1280
Pixel Density
393 ppi
405 ppi
282 ppi
Aspect Ratio
20:09
20:09
-
Screen Protection
Corning Gorilla Glass v3
Corning Gorilla Glass v3
Corning Gorilla Glass 3
Screen to Body Ratio
91%
91%
68.04%
Screen Design
Punch-Hole Display
Punch-Hole Display
-
Screen Quality
FHD
FHD
HD
Peak Brightness
420 nits
420 nits
-
Screen Refresh Rate
-
60 Hz
-
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass
Performance
GPU
Adreno 618
Mali-G72 MP3
Mali-T860 MP2
Operating System
Android v10 (Q)
Android v10 (Q)
Android v7.1 (Nougat)
Chipset
Qualcomm Snapdragon 730G
Samsung Exynos 9 Octa 9611
MediaTek MT6750
CPU
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (1.5 GHz, Quad core, Cortex A53 + 1 GHz, Quad core, Cortex A53)
Custom User Interface
Samsung One UI
Samsung One UI
ColorOS
Clock Speed
2.2 GHz
2.3 GHz
1.5 GHz
Architecture
64 bit
64 bit
64 bit
Memory & Storage
Phone Variants
128GB 6GB RAM, 128GB 8GB RAM
128GB 6GB RAM, 128GB 8GB RAM
16 GB, 3 GB RAM
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
LPDDR4X
-
Storage Type
UFS 2.1
UFS 2.1
-
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
Yes, 256 GB
General
Announced On
31-Aug-20
30-Jul-20
5-Sep-17
Market Status
Available
Available
Available
Brand
Samsung
Samsung
OPPO
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 22,990
Rs. 18,499
Rs. 12,500
Battery
Battery Capacity
7000 mAh
6000 mAh
3010 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 25W
Fast, 25W
-
USB Type-C
Yes
Yes
No
Fast Charging
Yes
Yes
-
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS
Audio Features
Dolby Atmos
Dolby Atmos
Active noise cancellation with dedicated mic
NFC
Yes
No
No
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
Bluetooth Type
v5.0
v5.0
v4.0
Audio Jack
3.5 mm
3.5 mm
3.5 mm
Front Camera
Front Video Recording
1920x1080 @ 30 fps
3840x2160 @ 30 fps
-
Front Camera Features
HDR
HDR
-
Front Camera Setup
Single, 32MP
Single, 32MP
Single, 5MP
Front Camera 1 Resolution
32 MP
32 MP
5 MP
Front Camera 1 Type
f/2.2, Wide Angle Primary Camera
f/2.2 Primary Camera
f/2.4 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
-
Front Sensor
Exmor RS
Exmor RS
-
Front Flash
No
No
-
Design
Weight
213 grams
203 grams
137 grams
Colors
Celestial Black, Electric Blue
Mirage Black, Mirage Blue
Black, Gold
Build
Back: Plastic
Back: Plastic
Front glass, aluminum body
Dimensions
163.9 x 76.3 x 9.5 mm
159.3 x 74.4 x 9.3 mm
148.1 x 73.8 x 7.6 mm
SAR Value
Head: 1.381 W/kg
Head: 1.38 W/kg
-
Rear Camera
OIS
No
No
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
3840x2160 @ 30 fps
1920x1080 @ 30 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
10 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
Quad, 64MP + 12MP + 5MP + 5MP
Single, 13MP
Rear Camera 1 Resolution
64 MP
64 MP
13 MP
Rear Camera 1 Type
f/1.8 (upto 8x Digital Zoom), Wide Angle Primary Camera
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera
f/2.2 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
-
Rear Camera 2 Resolution
12 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
-
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/2.4, Depth Camera
f/2.4, Depth Camera
-
Rear Sensor
Exmor-RS CMOS Sensor, ISOCELL Plus
Exmor-RS CMOS Sensor
-
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, a/ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, b/g/n
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) / 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) / 900(band 8) / 850(band 5), 3G Bands: UMTS 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 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) / 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...
3G Bands: UMTS 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
Sensors
Fingerprint Scanner
Yes
Yes
No
Fingerprint Scanner Position
Side
Side
-

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