Comparison between:
- Black Fox B4NFC
- Nobby S300 Pro
- Yezz Max 1
- Black Fox B4

Brand and model

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

Black Fox B4NFCNobby S300 ProYezz Max 1Black Fox B4
Black Fox B4NFCNobby S300 ProYezz Max 1Black Fox B4
Model aliasBMM543SS300ProMax1-

Design

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

Width65.5 mm
6.55 cm
0.215 ft
2.579 in
66.3 mm
6.63 cm
0.218 ft
2.61 in
65.8 mm
6.58 cm
0.216 ft
2.591 in
65.7 mm
6.57 cm
0.216 ft
2.587 in
Height137 mm
13.7 cm
0.449 ft
5.394 in
141 mm
14.1 cm
0.463 ft
5.551 in
139 mm
13.9 cm
0.456 ft
5.472 in
138 mm
13.8 cm
0.453 ft
5.433 in
Thickness10.5 mm
1.05 cm
0.034 ft
0.413 in
9.4 mm
0.94 cm
0.031 ft
0.37 in
8.8 mm
0.88 cm
0.029 ft
0.346 in
9.6 mm
0.96 cm
0.031 ft
0.378 in
Weight-135 g
0.3 lbs
4.76 oz
120 g
0.26 lbs
4.23 oz
136 g
0.3 lbs
4.8 oz
Volume94.22 cm³
5.72 in³
87.87 cm³
5.34 in³
80.49 cm³
4.89 in³
87.04 cm³
5.29 in³
ColorsBlack
Gold
Blue
Gold
Gray
Black
BlackBlack
Body materialsPlasticPlasticPlasticPlastic

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
Micro-SIM
Micro-SIMMicro-SIMNano-SIM
Micro-SIM
Number of SIM cards2222
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)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
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
W-CDMA-W-CDMA 900 MHz
W-CDMA 2100 MHz
--
UMTSUMTS 900 MHz (B8)
UMTS 2100 MHz (B1)
-UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz
LTELTE-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 800 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 technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4

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 9.0 PieAndroid 8.1 Oreo Go EditionAndroid 8.1 OreoAndroid 8.1 Oreo

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.

SoCMediaTek MT6739WAMediaTek MT6580MediaTek MT6580MediaTek MT6739WA
Process technology28 nm28 nm28 nm28 nm
CPU4x 1.3 GHz ARM Cortex-A534x 1.3 GHz ARM Cortex-A74x 1.3 GHz ARM Cortex-A74x 1.3 GHz ARM Cortex-A53
CPU bits64 bit32 bit32 bit64 bit
Instruction setARMv8-AARMv7-AARMv7-AARMv8-A
Level 1 cache memory (L1)-32 KB + 32 KB32 KB + 32 KB-
Level 2 cache memory (L2)-512 KB
0.5 MB
512 KB
0.5 MB
-
CPU cores4444
CPU frequency1300 MHz1300 MHz1300 MHz1300 MHz
GPUIMG PowerVR GE8100ARM Mali-400 MP1ARM Mali-400 MP1IMG PowerVR GE8100
GPU cores-11-
GPU frequency450 MHz500 MHz500 MHz450 MHz
RAM capacity2 GB2 GB2 GB2 GB
RAM typeLPDDR3LPDDR2/LPDDR3LPDDR2/LPDDR3LPDDR3
RAM channelsSingle channelSingle channelSingle channelSingle channel
RAM frequency667 MHz533 MHz533 MHz667 MHz

Storage

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

Storage16 GB16 GB16 GB16 GB

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
microSD
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/technologyIPSIPSTFTTN
Diagonal size5 in
127 mm
12.7 cm
4.95 in
125.73 mm
12.57 cm
5 in
127 mm
12.7 cm
4.95 in
125.73 mm
12.57 cm
Width2.24 in
56.8 mm
5.68 cm
2.21 in
56.23 mm
5.62 cm
2.24 in
56.8 mm
5.68 cm
2.21 in
56.23 mm
5.62 cm
Height4.47 in
113.59 mm
11.36 cm
4.43 in
112.46 mm
11.25 cm
4.47 in
113.59 mm
11.36 cm
4.43 in
112.46 mm
11.25 cm
Aspect ratio2:1
2:1 (18:9)
2:1
2:1 (18:9)
2:1
2:1 (18:9)
2:1
2:1 (18:9)
Resolution480 x 960 pixels480 x 960 pixels480 x 960 pixels480 x 960 pixels
Pixel density215 ppi
84 ppcm
217 ppi
85 ppcm
215 ppi
84 ppcm
217 ppi
85 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area72.13 %67.86 %70.77 %69.97 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
2.5D curved glass screen--2.5D curved glass screen
GFF full lamination

Sensors

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

SensorsProximity
Light
Accelerometer
Fingerprint
AccelerometerAccelerometerProximity
Light
Accelerometer
Fingerprint

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 typeCMOSCMOSCMOSCMOS
Flash typeDual LEDLEDLEDDual LED
Image resolution2560 x 1920 pixels
4.92 MP
2592 x 1944 pixels
5.04 MP
3264 x 2448 pixels
7.99 MP
2592 x 1944 pixels
5.04 MP
Video resolution1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Face detection
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Secondary rear camera - 0.3 MPInterpolated resolution - 8 MP-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.

Aperturef/2.8--f/2.8
Auxiliary light--LED-
Image resolution1920 x 1080 pixels
2.07 MP
1600 x 1200 pixels
1.92 MP
3264 x 2448 pixels
7.99 MP
1600 x 1200 pixels
1.92 MP
Video resolution640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps30 fps30 fps

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GPS
A-GPS
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-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
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.

Version4.24.04.04.2
FeaturesEDR
LE
A2DPA2DP
LE
A2DP
HSP

USB

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

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
Charging
Mass storage
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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
NFC

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
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
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
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
MP4
Xvid
3GPP
AVI
MP4
Xvid
3GPP
AVI
MP4
Xvid
3GPP
AVI
MP4
Xvid

Battery

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

Capacity2000 mAh2000 mAh2000 mAh2000 mAh
TypeLi-IonLi-IonLi-IonLi-Ion
2G talk time-7 h
420 min
0.3 days
--
2G stand-by time-120 h
7200 min
5 days
--
3G talk time-7 h
420 min
0.3 days
--
3G stand-by time-120 h
7200 min
5 days
--
Charger output power5 V / 1 A--5 V / 1 A
FeaturesRemovableRemovableNon-removableRemovable
 Black Fox B4NFCNobby S300 ProYezz Max 1Black Fox B4