Comparison between:
- Bluboo Picasso
- Oukitel K4000 Pro
- Oukitel U8 Universe Tap
- Subor S3

Brand and model

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

Bluboo PicassoOukitel K4000 ProOukitel U8 Universe TapSubor S3
Bluboo Picasso
Prices
Oukitel K4000 Pro
Prices
Oukitel U8 Universe TapSubor S3

Design

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

Width70 mm
7 cm
0.23 ft
2.756 in
72 mm
7.2 cm
0.236 ft
2.835 in
76.3 mm
7.63 cm
0.25 ft
3.004 in
70.3 mm
7.03 cm
0.231 ft
2.768 in
Height142 mm
14.2 cm
0.466 ft
5.591 in
145.6 mm
14.56 cm
0.478 ft
5.732 in
151.8 mm
15.18 cm
0.498 ft
5.976 in
141.5 mm
14.15 cm
0.464 ft
5.571 in
Thickness8.2 mm
0.82 cm
0.027 ft
0.323 in
12.5 mm
1.25 cm
0.041 ft
0.492 in
7.9 mm
0.79 cm
0.026 ft
0.311 in
7.8 mm
0.78 cm
0.026 ft
0.307 in
Weight152 g
0.34 lbs
5.36 oz
250 g
0.55 lbs
8.82 oz
197 g
0.43 lbs
6.95 oz
145 g
0.32 lbs
5.11 oz
Volume81.51 cm³
4.95 in³
131.04 cm³
7.96 in³
91.5 cm³
5.56 in³
77.59 cm³
4.71 in³
ColorsBlack
Pink
Green
Blue
Yellow
Gray
Gold
White
Black
White
Black
White
Black
Body materialsPlastic
Metal
Metal
Plastic
Aluminium alloy
Plastic
Glass

SIM card

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

SIM card typeMicro-SIMMicro-SIM
Mini-SIM
Micro-SIM
Micro-SIM / microSD
Micro-SIM
Number of SIM cards2221
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)--

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 2100 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
-
TD-SCDMA---TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
LTE-LTE 800 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 800 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
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+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
EDGE
GPRS
LTE Cat 4
TD-SCDMA
TD-HSDPA

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 5.1 Lollipop
Android 6.0 Marshmallow
Android 5.1 Lollipop
Android 6.0 Marshmallow
Android 5.1 LollipopAndroid 4.4.2 KitKat

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 MT6580MediaTek MT6735PMediaTek MT6735PMediaTek MT6732
Process technology28 nm28 nm28 nm28 nm
CPU4x 1.3 GHz ARM Cortex-A74x 1.0 GHz ARM Cortex-A534x 1.0 GHz ARM Cortex-A534x 1.5 GHz ARM Cortex-A53
CPU bits32 bit64 bit64 bit64 bit
Instruction setARMv7-AARMv8-AARMv8-AARMv8-A
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 frequency1300 MHz1000 MHz1000 MHz1500 MHz
GPUARM Mali-400 MP1ARM Mali-T720 MP2ARM Mali-T720 MP2ARM Mali-T760 MP2
GPU cores1112
GPU frequency500 MHz400 MHz400 MHz650 MHz
RAM capacity2 GB2 GB2 GB1 GB
RAM typeLPDDR2/LPDDR3LPDDR3LPDDR3LPDDR3
RAM channelsSingle channelSingle channelSingle channelSingle channel
RAM frequency533 MHz533 MHz533 MHz800 MHz

Storage

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

Storage16 GB16 GB16 GB8 GB

Memory cards

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

TypesmicroSD
microSDHC
microSD
microSDHC
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 in
127 mm
12.7 cm
5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
Width2.45 in
62.26 mm
6.23 cm
2.45 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
Height4.36 in
110.69 mm
11.07 cm
4.36 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
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution720 x 1280 pixels720 x 1280 pixels720 x 1280 pixels720 x 1280 pixels
Pixel density294 ppi
115 ppcm
294 ppi
115 ppcm
267 ppi
104 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area69.56 %65.95 %72.23 %69.51 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
LTPS (Low Temperature PolySilicon)
Anti-fingerprint coating
95% NTSC
Corning Gorilla Glass
2.5D curved glass screen
1000:1 contrast ratio
350 cd/m²
2.5D curved glass screen
OGS (One Glass Solution)
Full Lamination Technology
400 cd/m²
Corning Gorilla Glass 3
550 cd/m²

Sensors

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

SensorsProximity
Light
Accelerometer
Proximity
Light
Accelerometer
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 modelGalaxyCore GC5005---
Sensor typeCMOSCMOSCMOSCMOS
Sensor size2.92 x 2.2 mm
0.14 in
---
Pixel size1.127 µm
0.001127 mm
---
Crop factor11.84---
ISO-100 - 1600--
Aperturef/2f/2f/2.2f/2.2
Focal length and 35 mm equivalent-3.5 mm--
Number of lenses---6
Flash typeDual LEDLEDDual LEDLED
Image resolution2592 x 1944 pixels
5.04 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 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
Self-timer
Scene mode
Macro mode
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
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
Interpolated resolution - 8 MPInterpolated resolution - 13 MPInterpolated resolution - 13 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 modelGalaxyCore GC5005---
Sensor typeCMOS---
Sensor size2.92 x 2.2 mm
0.14 in
---
Pixel size1.127 µm
0.001127 mm
---
Crop factor11.84---
Aperture-f/2.8f/2.4-
Focal length and 35 mm equivalent-3.5 mm--
Field of view88 °---
Image resolution2592 x 1944 pixels
5.04 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
-
Video FPS30 fps30 fps30 fps-
Interpolated resolution - 8 MPInterpolated resolution - 5 MPInterpolated resolution - 5 MP-

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-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
Dual band
Wi-Fi Hotspot
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
802.11ac
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
FeaturesA2DP
EDR
LE
A2DPA2DPA2DP

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
On-The-Go
Charging
Mass storage
On-The-Go
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
HotKnot
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
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
WMA
WAV
AAC
AAC+
AMR
eAAC+
MIDI
MP3
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
Flash Video
MKV
QuickTime
MPEG-4
Xvid
3GPP
AVI
DivX
MKV
MP4
Xvid
3GPP
AVI
MKV
MP4
WMV
Xvid
3GPP
AVI
H.263
H.264
MP4

Battery

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

Capacity2500 mAh4600 mAh2800 mAh1700 mAh
TypeLi-IonLi-PolymerLi-PolymerLi-Ion
2G talk time-80 h 30 min
80.5 h
4830 min
3.4 days
8 h
480 min
0.3 days
-
2G stand-by time-960 h
57600 min
40 days
100 h
6000 min
4.2 days
-
3G talk time-80 h 30 min
80.5 h
4830 min
3.4 days
7 h
420 min
0.3 days
-
3G stand-by time-960 h
57600 min
40 days
90 h
5400 min
3.8 days
-
Charger output power5 V / 0.6 A5 V / 1.5 A--
FeaturesRemovableFast charging
Removable
Fast charging
Non-removable
Non-removable
 Bluboo PicassoOukitel K4000 ProOukitel U8 Universe TapSubor S3