Samsung Galaxy M51 vs Realme 6i vs Samsung Galaxy M31
Key Feature Comparison
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At a Glance
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Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
7000 mAh
4300 mAh
6000 mAh
6.7 inches
6.5 inches
6.4 inches
Quad, 64MP + 12MP + 5MP + 5MP
Quad, 48MP + 8MP + 2MP + 2MP
Quad, 64MP + 8MP + 5MP + 5MP
4G
4G
4G
Detailed Specs
Screen Size
6.7 inches
6.5 inches
6.4 inches
Screen Type
Super AMOLED
IPS LCD
Super AMOLED
Screen Resolution
1080 x 2400 pixels
1080 x 2400 pixels
1080 x 2340 pixels
Pixel Density
393 ppi
405 ppi
403 ppi
Aspect Ratio
20:09
20:09
19.5:9
Screen Protection
Gorilla Glass 3
Gorilla Glass 3
Gorilla Glass 3
Screen to Body Ratio
91%
90.50%
83.92%
Screen Design
Punch hole
Punch hole
Regular notch
Screen Quality
FHD
FHD
FHD
Peak Brightness
420 nits
480 nits
-
Screen Refresh Rate
-
90 Hz
-
Phone Variants
8GB 128GB, 6GB 128GB
6GB 64GB, 4GB 64GB
6GB 64GB, 8GB 128GB, 6GB 128GB
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.1
UFS 2.1
UFS 2.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 256 GB
Yes, 512 GB
OTG Support
-
Yes
Yes
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v10 (Q)
Android v10 (Q)
Android v10 (Q)
GPU
Adreno 618
Mali-G76 MC4
Mali-G72 MP3
Chipset
Qualcomm Snapdragon 730G
MediaTek Helio G90T
Samsung Exynos 9 Octa 9611
CPU
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)
Octa core (2.05 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Custom User Interface
Samsung One UI
Realme UI
Samsung One UI
Clock Speed
2.2 GHz
2.05 GHz
2.3 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
8 nm
12 nm
10 nm
Battery Capacity
7000 mAh
4300 mAh
6000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
Charger Type
Fast, 25W
Flash, 30W
Fast, 15W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Charging Time
-
100 % in 55 minutes
-
Announced On
31-Aug-20
24-Jul-20
25-Feb-20
Market Status
Available
Available
Available
Brand
Samsung
Realme
Samsung
Model Number
SM-M515FZBEINS
RMX2002
SM-M315FZKDINS
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 19,999
Rs. 12,980
Rs. 15,999
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Dolby Atmos
Dolby Atmos
NFC
Yes
No
No
Network Support
4G
4G
4G
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
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, a/ac/b/g/n/n 5GHz, MIMO
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Bluetooth Type
v5.0
v5.0
v5.0
Audio Jack
3.5 mm
3.5 mm
3.5 mm
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE
eSIM
No
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
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 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 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
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...
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) / 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...
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...
FM Radio
-
Yes
Yes
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
Fixed Focus
HDR
Front Camera Setup
Single, 32MP
Single, 16MP
Single, 32MP
Front Camera 1 Resolution
32 MP
16 MP
32 MP
Front Camera 1 Type
f/2.2, Wide Angle Primary Camera
f/2.0, Wide Angle Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
3.1" sensor size, 1 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
Front Sensor
Exmor RS
CMOS
Exmor RS
Front Aperture
f/2.2
f/2.0
f/2.0
Front Flash
No
-
No
Weight
213 grams
191 grams
191 grams
Colors
Celestial Black, Electric Blue
Eclipse Black, Lunar White
Black, Blue
Build
Back: Plastic
Back: Plastic
Back: Plastic
Dimensions
163.9 x 76.3 x 9.5 mm
162.1 x 74.8 x 8.9 mm
159.2 x 75.1 x 8.9 mm
SAR Value
Head: 1.381 W/kg
Head: 1.138 W/kg, Body: 0.586 W/kg
Head: 0.383 W/kg
Water Resistance
-
Yes, Splash proof
-
OIS
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 @ 60 fps
3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 240 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
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 64MP + 12MP + 5MP + 5MP
Quad, 48MP + 8MP + 2MP + 2MP
Quad, 64MP + 8MP + 5MP + 5MP
Rear Camera 1 Resolution
64 MP
48 MP
64 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 (79 degree field-of-view) Primary Camera
f/1.8 (upto 8x Digital Zoom) Primary Camera
Rear Camera 1 Lens
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
2" 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
8 MP
8 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.3, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 3 Resolution
5 MP
2 MP
5 MP
Rear Camera 3 Type
f/2.4, Macro Camera
f/2.4, Macro Camera
f/2.4, Macro Camera
Rear Camera 4 Resolution
5 MP
2 MP
5 MP
Rear Camera 4 Type
f/2.4, Depth Camera
f/2.4, Depth Camera
f/2.2, Depth Camera
Rear Sensor
Exmor-RS CMOS Sensor, ISOCELL Plus
CMOS image sensor
ISOCELL Plus
Rear Aperture
f/1.8
f/1.8
f/1.8
Rear Camera 2 Lens
-
4.0" sensor size, 1.12 micrometre pixel size
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
Rear Camera 3 Lens
-
5.0" sensor size, 1.75 micrometre pixel size
25 mm focal length, 5.0" sensor size, 1.12 micrometre pixel size
Rear Camera 4 Lens
-
5.0" sensor size, 1.75 micrometre pixel size
-
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Side
Side
Rear
Face Unlock
Yes
Yes
Yes