Comparison between:
- Sony Xperia XZ2 Compact
- Black Fox B4NFC
- ZTE Blade A31

Brand and model

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

Sony Xperia XZ2 CompactBlack Fox B4NFCZTE Blade A31
Sony Xperia XZ2 Compact
Prices
Black Fox B4NFCZTE Blade A31
Model aliasH8314
H8324
BMM543S-

Design

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

Width65 mm
6.5 cm
0.213 ft
2.559 in
65.5 mm
6.55 cm
0.215 ft
2.579 in
70.7 mm
7.07 cm
0.232 ft
2.783 in
Height135 mm
13.5 cm
0.443 ft
5.315 in
137 mm
13.7 cm
0.449 ft
5.394 in
146 mm
14.6 cm
0.479 ft
5.748 in
Thickness12.1 mm
1.21 cm
0.04 ft
0.476 in
10.5 mm
1.05 cm
0.034 ft
0.413 in
9.3 mm
0.93 cm
0.031 ft
0.366 in
Weight168 g
0.37 lbs
5.93 oz
-166 g
0.37 lbs
5.86 oz
Volume106.18 cm³
6.45 in³
94.22 cm³
5.72 in³
96 cm³
5.83 in³
ColorsBlack
Pink
Silver
Green
Black
Gold
Dark Blue
Black
Body materialsAluminium alloy
Polycarbonate
PlasticPlastic
CertificationIP68
IP65
--

SIM card

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

SIM card typeNano-SIMNano-SIM
Micro-SIM
Nano-SIM
Nano-SIM / microSD
Number of SIM cards122
FeaturesDual SIM optional (A variant of the model with two SIM card slots is available)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
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 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)
W-CDMA--W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 900 MHz (B8)
UMTS 2100 MHz (B1)
-
LTELTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz Class 13
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 700 MHz (B29)
LTE-FDD 800 MHz (B20)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
LTE-FDD 800 MHz (B20)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
LTE-TDD 2600 MHz (B38)

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 technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 15
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 5

Operating system

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

Operating system (OS)Android 8.0 Oreo
Android 9.0 Pie
Android 10
Android 9.0 PieAndroid 11 Go edition

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 845 (SDM845)MediaTek MT6739WAUnisoc SC9863A
Process technology10 nm28 nm28 nm
CPU4x 2.8 GHz ARM Cortex-A75, 4x 1.8 GHz ARM Cortex-A55 (Kryo 385)4x 1.3 GHz ARM Cortex-A534x 1.6 GHz ARM Cortex-A55, 4x 1.2 GHz ARM Cortex-A55
CPU bits64 bit64 bit64 bit
Instruction setARMv8.2-AARMv8-AARMv8.2-A
Level 1 cache memory (L1)32 KB + 32 KB--
Level 2 cache memory (L2)1536 KB
1.5 MB
--
Level 3 cache memory (L3)2048 KB
2 MB
--
CPU cores848
CPU frequency2800 MHz1300 MHz1600 MHz
GPUQualcomm Adreno 630IMG PowerVR GE8100PowerVR GE8322 / IMG8322
GPU cores--2
GPU frequency710 MHz450 MHz550 MHz
RAM capacity4 GB
6 GB
2 GB2 GB
RAM typeLPDDR4XLPDDR3LPDDR4/LPDDR4X
RAM channelsDouble channelSingle channelDouble channel
RAM frequency1866 MHz667 MHz1600 MHz

Storage

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

Storage64 GB16 GB32 GB
UFS 2.1--

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/technologyIPSIPSIPS
Diagonal size5 in
127 mm
12.7 cm
5 in
127 mm
12.7 cm
5.45 in
138.43 mm
13.84 cm
Width2.24 in
56.8 mm
5.68 cm
2.24 in
56.8 mm
5.68 cm
2.44 in
61.91 mm
6.19 cm
Height4.47 in
113.59 mm
11.36 cm
4.47 in
113.59 mm
11.36 cm
4.87 in
123.82 mm
12.38 cm
Aspect ratio2:1
2:1 (18:9)
2:1
2:1 (18:9)
2:1
2:1 (18:9)
Resolution1080 x 2160 pixels480 x 960 pixels720 x 1440 pixels
Pixel density483 ppi
189 ppcm
215 ppi
84 ppcm
295 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area73.76 %72.13 %74.5 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Corning Gorilla Glass 5
Triluminos display for mobile
X-Reality display
Dynamic contrast enhancement
HDR
2.5D curved glass screen-

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Proximity
Light
Accelerometer
Fingerprint
Proximity
Light
Accelerometer

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 typeCMOSCMOS-
Sensor format1/2.3"--
Pixel size1.22 µm
0.001220 mm
--
ISO100 - 12800--
Aperturef/2--
Focal length and 35 mm equivalent4.4 mm
25 mm *(35 mm / full frame)
--
Number of lenses6--
Flash typeLEDDual LEDLED
Image resolution5057 x 3796 pixels
19.2 MP
2560 x 1920 pixels
4.92 MP
3264 x 2448 pixels
7.99 MP
Video resolution3840 x 2160 pixels
8.29 MP
1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 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
Hybrid auto focus (HAF)
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
-
Wide angel G-lens
5-axis EIS
1080p @ 960 fps
720p @ 960 fps
Secondary rear camera - 0.3 MP-

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 typeCMOS--
Sensor format1/5"--
ISO100 - 1600--
Aperturef/2.2f/2.8f/2.8
Focal length and 35 mm equivalent1.9 mm
23 mm *(35 mm / full frame)
--
Image resolution2592 x 1944 pixels
5.04 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video resolution1920 x 1080 pixels
2.07 MP
640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps30 fps
5-axis EIS-Software interpolated to 5 MP

Audio

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

SpeakerLoudspeaker
Earpiece
Stereo speakers
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Clear Audio+
S-Force front surround
192 kHz / 24-bit
Headphone adapter
--

Radio

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

RadioNoYesYes

Tracking/Positioning

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

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

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
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot

Bluetooth

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

Version5.04.24.2
FeaturesA2DP
AVRCP
DIP
GAVDP
GAP
HDP
HFP
HID
HSP
LE
MAP
OPP
PAN
PBAP
SPP
EDR
LE
LE

USB

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

Connector typeUSB Type-CMicro USBMicro USB
Version3.12.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
Charging
Mass storage

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 jackNoYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
DLNA
NFC
Computer sync
OTA sync
Tethering
NFC
Computer sync
OTA sync
Tethering
VoLTE

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
M4A
MIDI
MP3
OGG
WMA
WAV
LDAC
DSEE HX
DSD
AAC
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
eAAC+
FLAC
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
H.263
H.264
H.265
MKV
MP4
VP8
VP9
WebM
WMV
Xvid
3GPP
AVI
MP4
Xvid
3GPP
AVI
H.263
H.264
MKV
MP4
WMV
Xvid

Battery

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

Capacity2870 mAh2000 mAh3000 mAh
TypeLi-PolymerLi-IonLi-Polymer
Charger output power5 V / 1.5 A5 V / 1 A-
Quick charge technologyQualcomm Quick Charge 3.0--
FeaturesFast charging
Non-removable
RemovableNon-removable

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Head SAR (EU)0.77 W/kg--
Body SAR (EU)1.05 W/kg--
Head SAR (USA)0.78 W/kg--
Body SAR (USA)0.74 W/kg--

Additional features

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

Additional featuresH8314 - SAR (Specific Absorption Rate) EU: head - 0.770 W/kg; body - 1.050 W/kg
H8314 - SAR (Specific Absorption Rate) US: head - 0.780 W/kg; body - 0.740 W/kg
H8324 - SAR (Specific Absorption Rate) EU: head - 0.770 W/kg; body - 1.050 W/kg
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 Sony Xperia XZ2 CompactBlack Fox B4NFCZTE Blade A31