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POCO X3 vs Samsung Galaxy M31s vs Samsung Galaxy A51

Key Feature Comparison

6.9

Samsung Galaxy M31s

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6.9

Samsung Galaxy A51

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At a Glance

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Octa core (2.3 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)

Qualcomm Snapdragon 732G, Adreno 618

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Samsung Exynos 9 Octa 9611, Mali-G72 MP3

6000 mAh

Li-Polymer, Quick, 33W

6000 mAh

Li-ion, Fast, 25W

4000 mAh

Li-ion, Fast, 15W

6.67 inches

395 ppi, FHD

6.5 inches

405 ppi, FHD

6.5 inches

405 ppi, FHD

Quad, 64MP + 13MP + 2MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps

Quad, 64MP + 12MP + 5MP + 5MP

3840x2160 @ 30 fps

Quad, 48MP + 12MP + 5MP + 5MP

3840x2160 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

6.67 inches
6.5 inches
6.5 inches

Screen Type

IPS LCD
Super AMOLED
Super AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2400 pixels
1080 x 2400 pixels

Pixel Density

395 ppi
405 ppi
405 ppi

Aspect Ratio

20:09
20:09
20:09

Screen Protection

Gorilla Glass 5
Gorilla Glass 3
Gorilla Glass 3

Screen to Body Ratio

91.25%
91%
87.44%

Screen Design

Punch hole
Punch hole
Punch hole

Screen Refresh Rate

120 Hz
60 Hz
-

Screen Quality

FHD
FHD
FHD

Peak Brightness

450 nits
420 nits
-

Phone Variants

6GB 64GB, 8GB 128GB, 6GB 128GB
8GB 128GB, 6GB 128GB
8GB 128GB, 6GB 128GB

Expandable Storage

Yes
Yes
Yes

RAM Type

LPDDR4X
LPDDR4X
LPDDR4X

Storage Type

UFS 2.1
UFS 2.1
UFS 2.0

Expandable Storage Capacity

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

OTG Support

Yes
-
Yes

Sensors

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

Operating System

Android v10 (Q)
Android v10 (Q)
Android v10 (Q)

GPU

Adreno 618
Mali-G72 MP3
Mali-G72 MP3

Chipset

Qualcomm Snapdragon 732G
Samsung Exynos 9 Octa 9611
Samsung Exynos 9 Octa 9611

CPU

Octa core (2.3 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 (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)

Custom User Interface

MIUI
Samsung One UI
Samsung One UI

Clock Speed

2.3 GHz
2.3 GHz
2.3 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

8 nm
10 nm
10 nm

Battery Capacity

6000 mAh
6000 mAh
4000 mAh

Battery Removable

No
No
No

Battery Type

Li-Polymer
Li-ion
Li-ion

Charger Type

Quick, 33W
Fast, 25W
Fast, 15W

USB Type-C

Yes
Yes
Yes

Fast Charging

Yes
Yes
Yes

Announced On

22-Sep-20
30-Jul-20
5-Dec-19

Market Status

Available
Available
Available

Brand

POCO
Samsung
Samsung

Model Number

MZB07Z3IN
SM-M317FZBDINS
SM-A515FZB1INS/SM-A515FZBWINS

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 16,490
Rs. 18,499
Rs. 20,450

GPS

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

Audio Features

24-bit/192kHz audio
Dolby Atmos
Dolby Atmos

NFC

No
No
Yes

Network Support

4G
4G
4G

Bluetooth

Yes
Yes
Yes

3.5mm Audio Jack

Yes
Yes
Yes

SIM Size

SIM1: Nano, SIM2: Nano (Hybrid)
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano

Wi-Fi

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

Bluetooth Type

v5.1
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

Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot

VoLTE

Yes
Yes
Yes

SIM 1 Bands

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) / 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) / 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...

SIM 2 Bands

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) / 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 13) / 700(band 17) / 800(band 20) / 850(band 26), 3G...

Front Video Recording

1920x1080 @ 30 fps
3840x2160 @ 30 fps
1920x1080 @ 30 fps

Front Camera Features

HDR, panorama
HDR
HDR

Front Camera Setup

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

Front Camera 1 Resolution

20 MP
32 MP
32 MP

Front Camera 1 Type

f/2.2, Wide Angle Primary Camera
f/2.2 Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

3.4" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.8" sensor size, 0.8 micrometre pixel size
2.8" sensor size, 0.8 micrometre pixel size

Front Aperture

f/2.2
f/2.2
f/2.2

Front Sensor

-
Exmor RS
-

Front Flash

-
No
No

Weight

225 grams
203 grams
172 grams

Colors

Shadow Gray, Cobalt Blue
Mirage Black, Mirage Blue
Prism Crush White, Prism Crush Black, Prism Crush Pink, Prism Crush Blue

Build

Back: Plastic
Back: Plastic
Back: Plastic

Dimensions

165.3 x 76.3 x 10.08 mm
159.3 x 74.4 x 9.3 mm
158.5 x 73.6 x 7.9 mm

SAR Value

Head: 0.747 W/kg, Body: 0.615 W/kg
Head: 1.38 W/kg
Head: 0.598 W/kg

Rear Flash

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

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 60 fps
3840x2160 @ 30 fps
3840x2160 @ 30 fps

Rear Camera Features

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 + 13MP + 2MP + 2MP
Quad, 64MP + 12MP + 5MP + 5MP
Quad, 48MP + 12MP + 5MP + 5MP

Rear Camera 1 Resolution

64 MP
64 MP
48 MP

Rear Camera 1 Type

f/1.89, Wide Angle Primary Camera
f/1.8 (upto 10x Digital Zoom), Wide Angle Primary Camera
f/2.0 (upto 8x Digital Zoom) Primary Camera

Rear Camera 1 Lens

1.7" sensor size, 0.8 micrometre pixel size
26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
26 mm focal length, 2.25" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

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

Rear Camera 2 Lens

1.12 micrometre pixel size
-
-

Rear Camera 3 Resolution

2 MP
5 MP
5 MP

Rear Camera 3 Type

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

Rear Camera 3 Lens

1.75 micrometre pixel size
-
-

Rear Camera 4 Resolution

2 MP
5 MP
5 MP

Rear Camera 4 Type

f/2.4, Depth Camera
f/2.4, Depth Camera
f/2.2, Depth Camera

Rear Camera 4 Lens

1.75 micrometre pixel size
-
-

Rear Sensor

Exmor-RS CMOS Sensor
Exmor-RS CMOS Sensor
ISO-CELL

Rear Aperture

f/1.89
f/1.8
f/2.0

OIS

-
No
No

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Side
Side
On-Screen

Face Unlock

Yes
Yes
Yes

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