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Samsung Galaxy A31 vs Xiaomi Redmi Note 9 Pro vs Xiaomi Mi A3

Key Feature Comparison

7

Samsung Galaxy A31

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6.9

Xiaomi Redmi Note 9 Pro

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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 (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)

Qualcomm Snapdragon 720G, Adreno 618

Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 665, Adreno 610

5000 mAh

Li-ion, Fast, 15W

5020 mAh

Li-Polymer, Fast, 18W

4030 mAh

Li-ion, Quick, v3.0, 18W

6.4 inches

411 ppi, FHD

6.67 inches

395 ppi, FHD

6.08 inches

283 ppi

Quad, 48MP + 8MP + 5MP + 5MP

1920x1080 @ 30 fps

Quad, 48MP + 8MP + 5MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps

Triple, 48MP + 8MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.4 inches
6.67 inches
6.08 inches

Screen Type

Super AMOLED
IPS LCD
Super AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2400 pixels
720 x 1560 pixels

Pixel Density

411 ppi
395 ppi
283 ppi

Aspect Ratio

20:09
20:09
19.5:9

Screen to Body Ratio

84.92%
84.62%
82.15%

Screen Design

Waterdrop notch
Punch hole
Waterdrop notch

Screen Quality

FHD
FHD
-

Screen Protection

-
Gorilla Glass 5
Gorilla Glass 5

Peak Brightness

-
450 nits
-

Phone Variants

6GB 128GB
4GB 64GB, 6GB 128GB, 4GB 128GB
4GB 64GB, 6GB 128GB

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Expandable Storage Capacity

Yes, 512 GB
Yes, 512 GB
Yes, 256 GB

OTG Support

Yes
Yes
Yes

Storage Type

-
UFS 2.1
UFS 2.1

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Operating System

Android v10 (Q)
Android v10 (Q)
Android v9.0 (Pie)

GPU

Mali-G52
Adreno 618
Adreno 610

Chipset

MediaTek Helio P65
Qualcomm Snapdragon 720G
Qualcomm Snapdragon 665

CPU

Octa core (2 GHz, Dual core, Cortex A75 + 1.7 GHz, Hexa Core, Cortex A55)
Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Custom User Interface

Samsung One UI
MIUI
Android One

Clock Speed

2 GHz
2.3 GHz
2 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

12 nm
8 nm
11 nm

Battery Capacity

5000 mAh
5020 mAh
4030 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-Polymer
Li-ion

Charger Type

Fast, 15W
Fast, 18W
Quick, v3.0, 18W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

24-Mar-20
17-Mar-20
5-Jul-19

Market Status

Available
Available
Available

Brand

Samsung
Xiaomi
Xiaomi

Model Number

SM-A315FZB1INS/SM-A315FZBWINS
M2003J6A1I
MZB7975IN

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 17,999
Rs. 12,999
Rs. 13,499

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass

Audio Features

Dolby Atmos
-
Active noise cancellation with dedicated mic

NFC

Yes
No
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 (Hybrid)

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n, MIMO
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

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 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), 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) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 ...

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 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), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 /...

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps

Front Camera Setup

Single, 20MP
Single, 16MP
Single, 32MP

Front Camera 1 Resolution

20 MP
16 MP
32 MP

Front Camera 1 Type

f/2.2 Primary Camera
Primary Camera
f/2.0 Primary Camera

Front Aperture

f/2.2
-
f/2.0

Front Flash

No
-
-

Front Camera Features

-
HDR, panorama
Fixed Focus

Front Camera 1 Lens

-
1 micrometre pixel size
26 mm focal length, 2.8" sensor size, 1.6 micrometre pixel size

Weight

185 grams
209 grams
173.8 grams

Colors

Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Aurora Blue, Glacier White, Interstellar Black, Champagne Gold
More than White, Not just Blue, Kind of Grey

Dimensions

159.3 x 73.1 x 8.6 mm
165.7 x 76.6 x 8.8 mm
153.4 x 71.85 x 8.4 mm

SAR Value

Head: 1.13 W/kg
-
Head: 0.527 W/kg, Body: 0.722 W/kg

Build

-
Back: Gorilla Glass
Back: Mineral Glass

OIS

No
-
No

Rear Flash

Yes, LED Flash
Yes, LED Flash
Yes, LED Flash

Rear Video Recording

1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 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
2 x Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Quad, 48MP + 8MP + 5MP + 5MP
Quad, 48MP + 8MP + 5MP + 2MP
Triple, 48MP + 8MP + 2MP

Rear Camera 1 Resolution

48 MP
48 MP
48 MP

Rear Camera 1 Type

f/2.0 (upto 8x Digital Zoom) Primary Camera
f/1.79 (upto 10x Digital Zoom) Primary Camera
f/1.79 (upto 2x Digital Zoom) Primary Camera

Rear Camera 1 Lens

26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
2.25" sensor size, 1.6 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

8 MP
8 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
f/2.2, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 3 Resolution

5 MP
5 MP
2 MP

Rear Camera 3 Type

f/2.4, Macro Camera
f/2.4, Macro Camera
f/2.4, Depth Camera

Rear Camera 4 Resolution

5 MP
2 MP
-

Rear Camera 4 Type

f/2.4, Depth Camera
f/2.4, Depth Camera
-

Rear Aperture

f/2.0
f/1.79
f/1.79

Rear Camera 2 Lens

-
1.12 micrometre pixel size
13 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size

Rear Camera 3 Lens

-
1.12 micrometre pixel size
-

Rear Camera 4 Lens

-
1.75 micrometre pixel size
-

Rear Sensor

-
CMOS image sensor, ISOCELL Plus
Exmor-RS CMOS Sensor

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

On-Screen
Side
On-Screen

Fingerprint Scanner Type

Optical
-
Optical

Face Unlock

Yes
Yes
Yes

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