Comparison between:
- Kenxinda V7
- BLU Energy X Plus 2
- NUU Mobile X4
- Doogee X55

Brand and model

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

Kenxinda V7BLU Energy X Plus 2NUU Mobile X4Doogee X55
Kenxinda V7BLU Energy X Plus 2NUU Mobile X4Doogee X55
Prices
Model alias-E150Q--

Design

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

Width72.6 mm
7.26 cm
0.238 ft
2.858 in
77.5 mm
7.75 cm
0.254 ft
3.051 in
71.1 mm
7.11 cm
0.233 ft
2.799 in
72.04 mm
7.204 cm
0.236 ft
2.836 in
Height146 mm
14.6 cm
0.479 ft
5.748 in
154.3 mm
15.43 cm
0.506 ft
6.075 in
142.2 mm
14.22 cm
0.467 ft
5.598 in
148.84 mm
14.884 cm
0.488 ft
5.86 in
Thickness7.9 mm
0.79 cm
0.026 ft
0.311 in
9.6 mm
0.96 cm
0.031 ft
0.378 in
7.9 mm
0.79 cm
0.026 ft
0.311 in
8.6 mm
0.86 cm
0.028 ft
0.339 in
Weight143 g
0.32 lbs
5.04 oz
172 g
0.38 lbs
6.07 oz
152 g
0.34 lbs
5.36 oz
183 g
0.4 lbs
6.46 oz
Volume83.74 cm³
5.09 in³
114.8 cm³
6.97 in³
79.87 cm³
4.85 in³
92.21 cm³
5.6 in³
ColorsGold
Rose-gold
Silver
Gold
Gray
Rose-gold
Black
White
Black
Gold
Blue
Body materialsMetalMetalAluminium alloy
Plastic
Metal
Plastic

SIM card

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

SIM card typeMicro-SIM
Nano-SIM / microSD
Micro-SIMMicro-SIMNano-SIM
Nano-SIM / microSD
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)-
--SIM1 - 2G; 3G; 4G
SIM2 - 2G; 3G; 4G
-

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
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-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
--W-CDMA 900 MHz
W-CDMA 2100 MHz
UMTS-UMTS 850 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
-
LTELTE 700 MHz Class 17
LTE 800 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
-LTE 700 MHz Class 17
LTE 850 MHz
LTE 1700/2100 MHz
LTE 1900 MHz
LTE 700 MHz (B12)
-

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+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+

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 6.0 MarshmallowAndroid 6.0 MarshmallowAndroid 5.1 LollipopAndroid 7.1 Nougat

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 MT6735PMediaTek MT6580MediaTek MT6735MediaTek MT6580
Process technology28 nm28 nm28 nm28 nm
CPUARM Cortex-A53ARM Cortex-A7ARM Cortex-A53ARM Cortex-A7
CPU bits64 bit32 bit64 bit32 bit
Instruction setARMv8-AARMv7ARMv8-AARMv7
Level 1 cache memory (L1)32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB
Level 2 cache memory (L2)512 KB
0.5 MB
512 KB
0.5 MB
512 KB
0.5 MB
512 KB
0.5 MB
CPU cores4444
CPU frequency1000 MHz1300 MHz1300 MHz1300 MHz
GPUARM Mali-T720 MP1ARM Mali-400 MP2ARM Mali-T720 MP1ARM Mali-400 MP2
GPU cores1212
GPU frequency400 MHz-600 MHz500 MHz
RAM capacity2 GB1 GB2 GB1 GB
RAM typeLPDDR3-LPDDR3-
RAM channelsSingle channelSingle channelSingle channelSingle channel
RAM frequency533 MHz533 MHz640 MHz533 MHz

Storage

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

Storage16 GB8 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/technologyIPSIPSIPSIPS
Diagonal size5 in
127 mm
12.7 cm
5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
5.5 in
139.7 mm
13.97 cm
Width2.45 in
62.26 mm
6.23 cm
2.7 in
68.49 mm
6.85 cm
2.45 in
62.26 mm
6.23 cm
2.46 in
62.48 mm
6.25 cm
Height4.36 in
110.69 mm
11.07 cm
4.79 in
121.76 mm
12.18 cm
4.36 in
110.69 mm
11.07 cm
4.92 in
124.95 mm
12.5 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
2:1
2:1 (18:9)
Resolution720 x 1280 pixels720 x 1280 pixels720 x 1280 pixels640 x 1280 pixels
Pixel density294 ppi
115 ppcm
267 ppi
104 ppcm
294 ppi
115 ppcm
260 ppi
102 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area65.23 %69.96 %68.39 %73.04 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
-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
Fingerprint
Proximity
Light
Accelerometer
Proximity
Light
Accelerometer
Proximity
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 typeCMOSCMOSCMOS BSICMOS
Aperture-f/2.4-f/1.8
Flash typeLEDLEDLEDLED
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 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
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
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
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Interpolated resolution - 13 MP--Secondary rear camera - 8 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 type---CMOS
Auxiliary light-LED--
Image resolution2592 x 1944 pixels
5.04 MP
2560 x 1920 pixels
4.92 MP
2592 x 1944 pixels
5.04 MP
2560 x 1920 pixels
4.92 MP
Video resolution640 x 480 pixels
0.31 MP
--640 x 480 pixels
0.31 MP
Video FPS30 fps--30 fps
Interpolated resolution - 8 MP---

Audio

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

SpeakerLoudspeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
--0.5 W (Watt) speaker-

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
Wi-Fi Direct
802.11b
802.11g
802.11n
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.

Version4.04.04.04.0
FeaturesA2DPA2DPA2DPA2DP

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
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
HotKnot
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
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
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
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
H.263
H.264
MKV
MP4
Xvid
3GPP
AVI
MKV
MP4
WMV
Xvid
3GPP
AVI
H.263
H.264
MPEG-4
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.

Capacity2250 mAh4900 mAh2250 mAh2800 mAh
TypeLi-PolymerLi-PolymerLi-IonLi-Ion
2G talk time-30 h
1800 min
1.3 days
--
2G stand-by time-720 h
43200 min
30 days
--
3G talk time-30 h
1800 min
1.3 days
--
3G stand-by time-720 h
43200 min
30 days
--
Charger output power-5 V / 2 A5 V / 1 A5 V / 1 A
FeaturesNon-removableNon-removableRemovableNon-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 (USA)--0.235 W/kg-
Body SAR (USA)--0.591 W/kg-
 Kenxinda V7BLU Energy X Plus 2NUU Mobile X4Doogee X55