Samsung Galaxy A31 vs Samsung Galaxy A40 vs Redmi K20 Pro
- Updated: 27th Aug 2020, 06:41 IST
Key Feature Comparison
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At a Glance
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Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)
MediaTek Helio P65, Mali-G52
Octa core (1.8 GHz, Dual core, Cortex A73 + 1.6 GHz, Hexa Core, Cortex A53)
Samsung Exynos 7 Octa 7904, Mali-G71 MP2
Octa core (2.84 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
Qualcomm Snapdragon 855, Adreno 640
5000 mAh
Li-ion, Fast, 15W
3100 mAh
Li-ion
4000 mAh
Li-Polymer, Quick, v4.0
6.4 inches
411 ppi, FHD
5.9 inches
437 ppi, FHD
6.39 inches
403 ppi, FHD
Quad, 48MP + 8MP + 5MP + 5MP
1920x1080 @ 30 fps
Dual, 16MP + 5MP
1920x1080 @ 30 fps
Triple, 48MP + 13MP + 8MP
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
4G
Dual SIM, GSM+GSM
4G
Dual SIM, GSM+GSM
4G
Dual SIM, GSM+GSM, Dual VoLTE
Detailed Specs
Screen Size
6.4 inches
5.9 inches
6.39 inches
Screen Type
Super AMOLED
Super AMOLED
AMOLED
Screen Resolution
1080 x 2400 pixels
1080 x 2340 pixels
1080 x 2340 pixels
Pixel Density
411 ppi
437 ppi
403 ppi
Aspect Ratio
20:09
19.5:9
19.5:9
Screen to Body Ratio
84.92%
85.33%
91.90%
Screen Design
Waterdrop notch
Waterdrop notch
Bezel-less
Screen Quality
FHD
FHD
FHD
Screen Protection
-
Gorilla Glass 3
Gorilla Glass 5
Phone Variants
6GB 128GB
4GB 64GB
8GB 256GB, 6GB 128GB
Expandable Storage
Yes
Yes
No
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
-
OTG Support
Yes
-
Yes
Storage Type
-
eMMC 5.1
UFS 2.1
Sensors
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v10 (Q)
Android v9.0 (Pie)
Android v9.0 (Pie)
GPU
Mali-G52
Mali-G71 MP2
Adreno 640
Chipset
MediaTek Helio P65
Samsung Exynos 7 Octa 7904
Qualcomm Snapdragon 855
CPU
Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)
Octa core (1.8 GHz, Dual core, Cortex A73 + 1.6 GHz, Hexa 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)
Custom User Interface
Samsung One UI
-
MIUI
Clock Speed
2 GHz
1.8 GHz
2.84 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
12 nm
14 nm
7 nm
Battery Capacity
5000 mAh
3100 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-Polymer
Charger Type
Fast, 15W
-
Quick, v4.0
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
-
Yes
Announced On
24-Mar-20
5-Mar-19
28-May-19
Market Status
Available
Launched Globally
Available
Brand
Samsung
Samsung
Xiaomi
Model Number
SM-A315FZB1INS/SM-A315FZBWINS
-
MZB7750IN
Price Status
Confirmed
Expected
Confirmed
Price
Rs. 17,999
Rs. 19,500
Rs. 24,999
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
Active noise cancellation with dedicated mic
24-bit/192kHz audioActive noise cancellation with dedicated mic
NFC
Yes
Yes
No
Network Support
4G
4G
4G
Bluetooth
Yes
Yes
Yes
FM Radio
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, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/ac/b/g/n
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
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), 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), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
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), 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), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...
Front Video Recording
1920x1080 @ 30 fps
1080p30fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
Front Camera Setup
Single, 20MP
Single, 25MP
Single, 20MP
Front Camera 1 Resolution
20 MP
25 MP
20 MP
Front Camera 1 Type
f/2.2 Primary Camera
f/2.0 Primary Camera
f/2.2 Primary Camera
Front Aperture
f/2.2
f/2.0
f/2.2
Front Flash
No
No
-
Weight
185 grams
140 grams
191 grams
Colors
Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Black, Blue, Orange, White
Flame Red, Glacier Blue, Carbon Fiber Black, Pearl White
Dimensions
159.3 x 73.1 x 8.6 mm
144.4 x 69.2 x 7.9 mm
156.7 x 74.3 x 8.8 mm
SAR Value
Head: 1.13 W/kg
-
Head: 1.03 W/kg, Body: 0.72 W/kg
Build
-
Back: Plastic
Back: Gorilla Glass
OIS
No
No
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, Dual LED Flash
Rear Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
Rear Camera Features
8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Quad, 48MP + 8MP + 5MP + 5MP
Dual, 16MP + 5MP
Triple, 48MP + 13MP + 8MP
Rear Camera 1 Resolution
48 MP
16 MP
48 MP
Rear Camera 1 Type
f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.7 Primary Camera
f/1.75, Wide Angle Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
-
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
8 MP
5 MP
13 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 3 Resolution
5 MP
-
8 MP
Rear Camera 3 Type
f/2.4, Macro Camera
-
f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera
Rear Camera 4 Resolution
5 MP
-
-
Rear Camera 4 Type
f/2.4, Depth Camera
-
-
Rear Aperture
f/2.0
f/1.7
f/1.75
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
On-Screen
Rear
On-Screen
Fingerprint Scanner Type
Optical
-
Optical
Face Unlock
Yes
Yes
Yes
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