Bluboo Dual vs Bluboo S8 vs Gretel GT6000 vs Oukitel U13: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Bluboo Dual vs Bluboo S8 vs Gretel GT6000 vs Oukitel U13. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

Bluboo Dual
Bluboo Dual
Global · 2GB · 16GB
View datasheet
vs
Bluboo S8
Bluboo S8
Global · 1GB · 16GB · Lite
View datasheet
vs
Gretel GT6000
Gretel GT6000
Global · 2GB · 16GB
View datasheet
vs
Oukitel U13
Oukitel U13
Global · 3GB · 64GB
View datasheet
vs

Score

Ki Cost-effective
Score
-- Not available -- Not available -- Not available -- Not available
Design and Screen score --Design & Materials --Design & Materials --Design & Materials --Design & Materials
Performance and Hardware score --Performance & Hardware --Performance & Hardware --Performance & Hardware --Performance & Hardware
Camera score --Camera --Camera --Camera --Camera
Connectivity score -- Connectivity -- Connectivity -- Connectivity -- Connectivity
Battery score --Battery --Battery --Battery --Battery

User reviews

User score
5.5
15 reviews
4.9
14 reviews
9.2
6 reviews
2.9
17 reviews

Technical specifications of the Bluboo Dual vs Bluboo S8 vs Gretel GT6000 vs Oukitel U13

Specs stores to buy Bluboo Dual Bluboo Dual
Global · 2GB · 16GB
Bluboo S8 price comparison Bluboo S8
Global · 1GB · 16GB · Lite
Gretel GT6000 price compare Gretel GT6000
Global · 2GB · 16GB
Oukitel U13 price compare Oukitel U13
Global · 3GB · 64GB
Inches 5.5" 5.7" 5.5" 5.5"
Resolution FHD LowRes HD FHD
Usable surface 72% useful 79% useful 69% useful 74% useful
Aspect Ratio 16:9 18:9 16:9 16:9
Dimensions 76.3 mm
151.0 mm
8.0 mm
70.6 mm
149.5 mm
8.4 mm
77.3 mm
154.6 mm
10.6 mm
75.7 mm
149.0 mm
8.1 mm
Weight 153 g 207 g 233 g 157 g
Micro MT6737
Quad-Core
MT6580
Quad-Core
MT6737
Quad-Core
MT6753
Octa-Core
RAM 2 GB RAM 1 GB RAM 2 GB RAM 3 GB RAM
Storage 16 GB 16 GB 16 GB 64 GB
AnTuTu 39.565
v?
22.145
v?
30.500
v?
31.000
v?
Battery 3000 mAh 3450 mAh 6000 mAh 3000 mAh
Main Camera 1
13 Mpx · ƒ/2.0
IMX135 Exmor RS
2
1
5 Mpx · ƒ/2.0
Exmor RS
1
13 Mpx · ƒ/2.0
MN34152
1
13 Mpx · ƒ/2.0
S5K3M2
Selfie Camera SELF 5 Mpx · ƒ/-- SELF 5 Mpx · ƒ/-- SELF 5 Mpx · ƒ/-- SELF 8 Mpx · ƒ/--
Bands
OS Android 6.0 Marshmallow Android 7.0 Nougat Android 7.0 Nougat Android 6.0 Marshmallow

Brand

Brand Bluboo Bluboo Gretel Oukitel
Aliases -- -- -- --

Release Date

Release date November 2016,
7 years ago
July 2017,
6 years ago
May 2017,
6 years ago
July 2016,
7 years ago
State Not available Not available Not available Not available
Market Global Global Global Global

Design & Materials

Structure

Bluboo Dual
Bluboo S8
Gretel GT6000
Oukitel U13
Bluboo Dual
Bluboo S8
Gretel GT6000
Oukitel U13
Size
76.3 mm 151.0 mm 8.0 mm
Print 3D Model
70.6 mm 149.5 mm 8.4 mm
Print 3D Model
77.3 mm 154.6 mm 10.6 mm
Print 3D Model
75.7 mm 149.0 mm 8.1 mm
Print 3D Model
Weight 153 g 207 g 233 g 157 g
Usable surface 72 % 79 % 69 % 74 %
Materials Aluminium alloy Metal Aluminium alloy Metal
Resistance - - - -
Colors
Gold

Gray

Rose-gold
Black

Blue

Gold
Black

Blue

Rose-gold
Gold

Gray

Rose-gold

Screen

Diagonal 5.5" 5.7" 5.5" 5.5"
Type LCD IPS LCD IPS Sharp LCD IPS LCD IPS
Aspect Ratio 16:9 18:9 16:9 16:9
Resolution FHD
1080 x 1920 px
LowRes
540 x 1080 px
HD
720 x 1280 px
FHD
1080 x 1920 px
Density 401 Pixels per inch 212 Pixels per inch 267 Pixels per inch 401 Pixels per inch

Others

Others
  • Without Notch
  • Brightnes 400 cd/m² (typ)
  • 1400:1 contrast ratio
  • NTSC
  • 96% NTSC
  • LED Notifications
  • 2.5D curved glass screen
  • GFF full lamination
  • Capacitive
  • Multi-touch
  • Without Notch
  • 2.5D curved glass screen
  • GFF full lamination
  • Capacitive
  • Multi-touch
  • Frameless
  • Without Notch
  • 2.5D curved glass screen
  • GFF full lamination
  • Capacitive
  • Multi-touch
  • Without Notch
  • 96% NTSC
  • Scratch resistant
  • OGS (One Glass Solution)
  • Full Lamination Technology
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
4.9
4.6
6.7
5.5
Do you think it's a nice phone?
7.9
8.7
8.8
7.9
Is it comfortable?
7.5
7.0
8.3
7.0
Can you see it well in the sunlight?
7.1
7.0
9.0
6.8
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews

Performance & Hardware

Processor

Model MediaTek MT6737T Mediatek MT6580A MediaTek MT6737 (1.3Ghz) MediaTek MT6753 (1.3GHz)
CPU 4x Cortex-A53 1.5 GHz 4x Cortex-A7 1.5 GHz 4x Cortex-A53 1.3 GHz 8x Cortex-A53 1.3 GHz
Type Quad-Core Quad-Core Quad-Core Octa-Core
Manufacturing 28 nm 28 nm 28 nm 28 nm
64 Bits Yes No Yes Yes

Graphics

GPU ARM Mali-T720 MP2 ARM Mali-400 MP1 ARM Mali-T720 MP2 550MHz ARM Mali-T720 MP3

RAM

RAM 2 GB 1 GB 2 GB 3 GB
Type -- -- -- --

Storage

Capacity 16 GB 16 GB 16 GB 64 GB
Type -- -- -- --
SD Slot Yes ,
Slot for SD or second SIM card
Yes ,
Independent SD slot
Yes ,
Slot for SD or second SIM card
Yes ,
Slot for SD or second SIM card

Security

Fingerprint Yes, in the back Yes, in the back Yes, on the front Yes, in the back

Sensors

Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Gyroscope
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Fingerprint
  • Proximity
  • Light sensor
  • Gravity

Audio

Audio
-
-
-
-

Others

Notifications LED LED Notifications -- -- --
Cooling system No No No No
Gaming buttons No No No No

User reviews

Does it have good sound?
5.9
4.7
8.8
6.0
Does it work smoothly in everyday use?
7.1
7.0
9.3
5.8
What's your experience been with demanding games?
6.0
6.2
8.2
5.4
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews

Camera

Main

No. of cameras Double rear camera Rear camera Rear camera Rear camera
1
Camera type

Standard

Standard

Standard

Standard
Resolution 13 Mpx 5 Mpx 13 Mpx 13 Mpx
Sensor Sony IMX135 Exmor RS Sony Exmor RS Panasonic MN34152 Samsung S5K3M2
Type CMOS CMOS BSI CMOS ISOCELL
Aperture ƒ/ 2.0 ƒ/ 2.0 ƒ/ 2.0 ƒ/ 2.0
ISO -- -- -- --
Pixel size 1.12 µm 1.15 µm 1.00 µm 1.12 µm
Pixel Binning -- -- -- --
Sensor size 1/3.06" -- 1/3.4" 1/3.06"
2
Camera type

--
--
--
Resolution
--
Sensor
Unknown
Type
--
Aperture
ƒ/ --
Pixel size
--
Pixel Binning
--
Sensor size
--

Features

Flash LED LED Dual LED LED
Optical Stabilisation No No No Yes
Slow Motion Video No,
30 fps
No,
30 fps
No,
30 fps
No,
30 fps
Others
  • Digital zoom
  • Dual camera
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer

Selfie

SELF
Camera type

Dedicated

Dedicated

Dedicated

Dedicated
Resolution 5 Mpx 5 Mpx 5 Mpx 8 Mpx
Sensor Unknown Unknown Unknown Unknown
Type -- -- -- --
Aperture ƒ/ -- ƒ/ -- ƒ/ -- ƒ/ --
Pixel size -- -- -- --
Pixel Binning -- -- -- --
Sensor size -- -- -- --
Others
--
--
--
--

DxOMark Score

DxOMark Score -- -- -- --

User reviews

Quality of daytime photos
7.7
7.6
8.8
6.2
Quality of nighttime photos
5.5
3.2
6.3
4.2
Quality of selfies
6.1
5.1
7.7
6.0
Does it have a powerful flash?
6.4
7.5
8.2
5.9
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews

Connectivity

Network compatibility

5G -- -- -- --
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B7 (2600)
  • B20 (800)
--
  • B1 (2100)
  • B3 (1800)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B1 (2100)
  • B3 (1800)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
3G
  • B1 (2100)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B8 (900)
  • B1 (2100)
  • B8 (900)
  • B1 (2100)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card

Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Micro SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Micro SIM
  • Micro SIM

Wi-Fi

Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
Others
  • Wi-Fi Hotspot
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Hotspot
  • Wi-Fi Hotspot

Bluetooth

Version Bluetooth 4.0 Bluetooth 4.0 Bluetooth 4.0 Bluetooth 4.0
Others
  • A2DP (Advanced Audio Distribution Profile)
  • A2DP (Advanced Audio Distribution Profile)
  • A2DP (Advanced Audio Distribution Profile)
  • A2DP (Advanced Audio Distribution Profile)

Navigation

Navigation
  • GPS
  • A-GPS
  • GLONASS
  • GPS
  • A-GPS
  • GPS
  • A-GPS
  • GPS
  • A-GPS

USB

USB
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)

SAR

European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

-- -- -- --
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

-- -- -- --

Others

Others
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • HotKnot

User reviews

Does it have good coverage for calls?
7.7
7.6
9.3
5.7
Quality of the GPS
6.7
6.2
9.2
6.2
And the WiFi?
6.8
6.6
9.3
6.4
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews

Battery

Battery

Capacity
3000 mAh
3450 mAh
6000 mAh
3000 mAh
Type Li-Ion Li-Polymer Li-Polymer Li-Polymer
Fast charge No Yes Yes No
Others
  • Non-removable
  • Non-removable
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 7%
    Less than half day
  • 33%
    Less than a day
  • 33%
    One day
  • 27%
    More than one day
  • 0%
    Two days or more
  • 0%
    Less than half day
  • 29%
    Less than a day
  • 57%
    One day
  • 14%
    More than one day
  • 0%
    Two days or more
  • 0%
    Less than half day
  • 0%
    Less than a day
  • 0%
    One day
  • 17%
    More than one day
  • 83%
    Two days or more
  • 29%
    Less than half day
  • 24%
    Less than a day
  • 35%
    One day
  • 12%
    More than one day
  • 0%
    Two days or more
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews

Software

Software

Operating System
  • Android 6.0 Marshmallow
    Android 6.0 Marshmallow, 8 years ago
  • Android 7.0 Nougat
    Android 7.0 Nougat, 7 years ago
  • Android 7.0 Nougat
    Android 7.0 Nougat, 7 years ago
  • Android 6.0 Marshmallow
    Android 6.0 Marshmallow, 8 years ago
Google Services (official) Yes Yes Yes Yes

User reviews

Did it come with preinstalled applications?
  • 27%
    It comes with a clean operating system
  • 67%
    It has preinstalled apps but they don't bother me
  • 7%
    It has preinstalled apps that I can't uninstall
  • 7%
    It comes with a clean operating system
  • 57%
    It has preinstalled apps but they don't bother me
  • 36%
    It has preinstalled apps that I can't uninstall
  • 17%
    It comes with a clean operating system
  • 83%
    It has preinstalled apps but they don't bother me
  • 0%
    It has preinstalled apps that I can't uninstall
  • 6%
    It comes with a clean operating system
  • 94%
    It has preinstalled apps but they don't bother me
  • 0%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 46%
    Never
  • 0%
    Once a year
  • 23%
    Every six months
  • 31%
    Every two months or less
  • 30%
    Never
  • 20%
    Once a year
  • 30%
    Every six months
  • 20%
    Every two months or less
  • 0%
    Never
  • 0%
    Once a year
  • 50%
    Every six months
  • 50%
    Every two months or less
  • 36%
    Never
  • 14%
    Once a year
  • 43%
    Every six months
  • 7%
    Every two months or less
Number of reviews
15 reviews
14 reviews
6 reviews
17 reviews