Comparison between:
- POCO X3 NFC
- POCO X2
- Samsung Galaxy M31s

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

POCO X3 NFCPOCO X2Samsung Galaxy M31s
POCO X3 NFC
Prices
POCO X2
Prices
Samsung Galaxy M31s
Prices
Model aliasM2007J20CG
M2007J20CT
MZB8744INSM-M317F/DS
SM-M317F
SM-M315FZKDINS

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width76.8 mm
7.68 cm
0.252 ft
3.024 in
76.6 mm
7.66 cm
0.251 ft
3.016 in
75.1 mm
7.51 cm
0.246 ft
2.957 in
Height165.3 mm
16.53 cm
0.542 ft
6.508 in
165.3 mm
16.53 cm
0.542 ft
6.508 in
159.2 mm
15.92 cm
0.522 ft
6.268 in
Thickness9.4 mm
0.94 cm
0.031 ft
0.37 in
8.79 mm
0.879 cm
0.029 ft
0.346 in
9.3 mm
0.93 cm
0.031 ft
0.366 in
Weight215 g
0.47 lbs
7.58 oz
208 g
0.46 lbs
7.34 oz
191 g
0.42 lbs
6.74 oz
Volume119.33 cm³
7.25 in³
111.3 cm³
6.76 in³
111.19 cm³
6.75 in³
ColorsShadow Gray
Cobalt Blue
Atlantis BlueMirage Black
Mirage Blue
Body materialsPlastic
Aluminium alloy
Plastic
Glass
Plastic
CertificationIP53--

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Nano-SIM
Number of SIM cards222
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
W-CDMAW-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
-
UMTS--UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesEDGE
GPRS
HSPA+
LTE
TD-SCDMA
EDGE
GPRS
HSPA+
LTE
TD-SCDMA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 10

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)MIUI 12 (Android 10)MIUI 11 (Android 10)Android 10
User interface (UI)--One UI 2.0

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCQualcomm Snapdragon 732GQualcomm Snapdragon 730GSamsung Exynos 7 Octa 9611
Process technology8 nm8 nm10 nm
CPU2x 2.3 GHz Kryo 470, 6x 1.8 GHz Kryo 4702x 2.2 GHz Kryo 470, 6x 1.8 GHz Kryo 4704x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A53
CPU bits64 bit64 bit64 bit
Instruction setARMv8ARMv8ARMv8-A
CPU cores888
CPU frequency2200 MHz2200 MHz2300 MHz
GPUQualcomm Adreno 618Qualcomm Adreno 618ARM Mali-G72 MP3
GPU cores--3
RAM capacity6 GB6 GB
8 GB
6 GB
8 GB
RAM typeLPDDR4XLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channelDouble channel
RAM frequency1866 MHz1866 MHz-
LiquidCool Technology 1.0 Plus
Game Turbo 3.0
Liquid cooling-

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage64 GB
128 GB
64 GB
128 GB
64 GB
128 GB
UFS 2.1UFS 2.1eMMC 5.1

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologyIPSIPSSuper AMOLED
Diagonal size6.67 in
169.42 mm
16.94 cm
6.67 in
169.42 mm
16.94 cm
6.5 in
165.1 mm
16.51 cm
Width2.74 in
69.52 mm
6.95 cm
2.74 in
69.52 mm
6.95 cm
2.72 in
69.19 mm
6.92 cm
Height6.08 in
154.5 mm
15.45 cm
6.08 in
154.5 mm
15.45 cm
5.9 in
149.9 mm
14.99 cm
Aspect ratio2.222:12.222:12.167:1
Resolution1080 x 2400 pixels1080 x 2400 pixels1080 x 2340 pixels
Pixel density395 ppi
155 ppcm
395 ppi
155 ppcm
396 ppi
155 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area84.88 %85.1 %87.03 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Corning Gorilla Glass 5
2.5D curved glass screen
Oleophobic coating
DynamicSwitch function
120Hz refresh rate
240Hz touch sampling rate
84% NTSC
450 cd/m²
1500:1
HDR10
TÜV Rheinland Low Blue Light certification
Wildvine L1 certified
Corning Gorilla Glass 5
2.5D curved glass screen
Oleophobic coating
120Hz
HDR10
2.5D curved glass screen
Corning Gorilla Glass 3
Infinity-O Display
420 cd/m² peak brightness
78960:1 dynamic contrast ratio
Widevine L1 certification for HD streaming

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
Compass
Gyroscope
Pedometer
Geomagnetic
Fingerprint
Gravity
Proximity
Accelerometer
Compass
Gyroscope
Geomagnetic
Fingerprint
Virtual Light Sensor
Side-mounted fingerprint sensor
Z-axis linear motor
Side-mounted fingerprint sensor-

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor modelSony IMX686Sony IMX686Sony IMX682
Sensor typeCMOS BSICMOS BSICMOS BSI
Sensor format1/1.7"1/1.7"1/1.72"
Pixel size0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
ISO--100 - 800
Aperturef/1.89f/1.7f/1.8
Focal length and 35 mm equivalent--3.58 mm
27 mm *(35 mm / full frame)
Field of view-79 °-
Number of lenses6--
Flash typeDual LEDDual LEDLED
Image resolution9248 x 6944 pixels
64.22 MP
9248 x 6944 pixels
64.22 MP
9280 x 6944 pixels
64.44 MP
Video resolution3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Pixel size - 1.6 μm (4-in-1 pixel binning)
10x digital zoom
1080p @ 120 fps
720p @ 960 fps
Secondary rear camera - 13 MP (ultra-wide angle)
Angle of view - 119° (#2)
Pixel size - 1.0 μm (#2)
Aperture size - f/2.2 (#2)
Third rear camera - 2 MP (depth-sensing)
Pixel size - 1.75 μm (#3)
Aperture size - f/2.4 (#3)
Fourth rear camera - 2 MP (macro)
Macro shooting distance - 2 cm (#4)
Pixel size - 1.75 μm (#4)
Aperture size - f/2.4 (#4)
Pixel size - 1.6 μm (4-in-1 pixel binning)
10x digital zoom
1080p @ 120 fps
720p @ 960 fps
Secondary rear camera - 8 MP (ultra-wide angle)
Angle of view - 120° (#2)
Pixel size - 1.12 μm (#2)
Aperture size - f/2.2 (#2)
Third rear camera - 2 MP (depth-sensing)
Pixel size - 1.75 μm (#3)
Aperture size - f/2.4 (#3)
Fourth rear camera - 2 MP (macro)
Macro shooting distance - 2 cm (#4)
Pixel size - 1.75 μm (#4)
Aperture size - f/2.4 (#4)
8x digital zoom
Secondary rear camera - 8 MP (ultra-wide angle)
Aperture size - f/2.2 (#2)
Third rear camera - 5 MP (depth-sensing)
Aperture size - f/2.2 (#3)
Fourth rear camera - 5 MP (macro)
Aperture size - f/2.2 (#4)

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Sensor model--Sony IMX616
Sensor type--CMOS BSI
Sensor format--1/2.8"
Pixel size0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
Aperturef/2.2-f/2
Field of view78 °78 °-
Image resolution5963 x 3354 pixels
20 MP
5963 x 3354 pixels
20 MP
6528 x 4896 pixels
31.96 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps
Features--Face unlock
-Secondary front camera - 2 MP (depth-sensing)
Angle of view - 83° (#2)
Pixel size - 1.75 μm (#2)
Aperture size - f/2.4 (#2)
-

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
Stereo speakers
Loudspeaker
Earpiece
Loudspeaker
Earpiece
4cc-equivalent 1012 upper speaker
1cc-equivalent 1216 lower speaker
Smart PA
Hi-Res audio
Dual microphone noise cancellation
1217 super linear speaker
Smart PA
Hi-Res audio
Dual microphone noise cancellation
Dolby Atmos

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioYesYesYes

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
Galileo
GPS
A-GPS
GLONASS
BeiDou
Galileo
GPS
A-GPS
GLONASS
BeiDou
Galileo

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version5.15.05.0
FeaturesA2DP
LE
A2DP
LE
A2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeUSB Type-CUSB Type-CUSB Type-C
Version2.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
Infrared
Tethering
NFC
VoLTE
Computer sync
Tethering
NFC
VoLTE
Computer sync
OTA sync
Tethering

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
AVI
DivX
Flash Video
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
DivX
Flash Video
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
3GPP
3GPP2
AVI
Flash Video
H.263
H.264
H.265
MKV
MP4
VC-1
VP8
VP9
WebM
WMV
WMV7
WMV8
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity5160 mAh4500 mAh6000 mAh
TypeLi-PolymerLi-PolymerLi-Ion
4G talk time--51 h
3060 min
2.1 days
Charger output power11 V / 3 A9 V / 3 A-
FeaturesFast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
Middle Middle Tab (MMT) technology-25W fast charging

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional featuresSAR (Specific Absorption Rate) India: head - 1.080 W/kg; body - 0.620 W/kgSAR (Specific Absorption Rate) India: head - 1.080 W/kg; body - 0.620 W/kg-
 POCO X3 NFCPOCO X2Samsung Galaxy M31s