Cubot X18 Plus Review

5 April 2018, 11:36:18

Cubot X18 Plus Review
You can buy a Cubot X18 Plus at a promotional price here.

Display

Cubot X18 Plus has a bigger display with a higher resolution compared to the X18. The model employs a 5.99-inch in-cell IPS unit with an FHD+ resolution. The screen has a peak brightness of 450 cd/m2, 1300:1 static contrast ratio and covers 90% of the NTSC colour space. In-cell means that the touch sensor layer is implemented inside the cell of the liquid-crystal display (LCD) thus making the unit thinner, more responsive, less power consuming and brighter. In a similar fashion to the display of Doogee S50, we have noticed that when we switch from one colour to a fully black screen, the handset needs about 10 seconds to show the black it is capable of showing. During these 10 seconds, the screen gets darker and darker. That's why we have decided to make two measurements, in order to give a more realistic picture of the static contrast, white and black luminance. The Single Frame measurements show the white and black luminance from a screen that shows 50% white and 50% black. The Separate Frames measurements show the white and black luminance received from a fully white and fully black screen.

A single frame, 50% white / 50% black

Brightness White luminance Black luminance Contrast Color temperature
100 % 381.388 cd/m2 0.263 cd/m2 1450 : 1 9793 K
75 % 310.106 cd/m2 0.221 cd/m2 1403 : 1 9873 K
50 % 218.153 cd/m2 0.152 cd/m2 1435 : 1 9833 K
25 % 118.409 cd/m2 0.082 cd/m2 1444 : 1 9937 K
0 % 15.729 cd/m2 0.011 cd/m2 1430 : 1 >10040 K
When the white and black luminance are measured on a single frame that shows 50% white and 50% black, we get a maximum brightness of 381 cd/m2 and a contrast ratio of 1400:1. The temperature of the white point is high - from 9800 K to 10000 K.

Two separate black and white frames

Brightness White luminance Black luminance Contrast Color temperature
100 % 488.809 cd/m2 0.140 cd/m2 3491 : 1 9798 K
75 % 403.161 cd/m2 0.114 cd/m2 3537 : 1 9908 K
50 % 282.440 cd/m2 0.078 cd/m2 3621 : 1 9890 K
25 % 155.515 cd/m2 0.043 cd/m2 3617 : 1 9913 K
0 % 20.809 cd/m2 0.006 cd/m2 3468 : 1 10109 K
When we measured the white and black luminance on a fully white and a fully black display, we got higher white luminance at all brightness levels. The maximum brightness in this occasion measures 489 cd/m2. At the same time, the black luminance values are lower, hence the contrast ratio is very high - from 3500:1 to 3600:1. This makes the displayed content clearly visible under direct sunlight. The temperature of the white point remains unchanged within the 9800-10000 K range.
Peak brightness (100% APL)
Vernee Mix 2
512.36 cd/m2
Doogee S70
509.314 cd/m2
Xiaomi Mi Max 2
508.652 cd/m2
Cubot Power
508.083 cd/m2
Xiaomi Mi MIX
507.669 cd/m2
Oukitel K3
502.322 cd/m2
Oukitel K10000
501.5 cd/m2
LeEco Le Pro 3 Elite
500.034 cd/m2
Oukitel WP5000
496.99 cd/m2
Xiaomi Mi Max SD650
492.415 cd/m2
Cubot X18 Plus
488.809 cd/m2
Ulefone Power 3
488.657 cd/m2
UMIDIGI Z2 Pro
488.288 cd/m2
Bluboo S8
487.373 cd/m2
Vernee X
486.998 cd/m2
LeEco Le X920
486.637 cd/m2
LeEco Le Max2
486.63 cd/m2
Xiaomi Mi MIX 2
484.569 cd/m2
Blackview BV8000 Pro
483.791 cd/m2
nubia Z17 mini Standard Edition
483.468 cd/m2
Oukitel U20 Plus
480.176 cd/m2
The CIE diagram unveils a higher than 100% coverage of the sRGB colour space but it is far from 90% NTSC. The display panel has a traditional vertical striped RGB subpixel arrangement.

Most recent reviews

A list of the most recent reviews of mobile devices made by us

OnePlus 6T Review

OnePlus 6T Review

Dimensions: 74.8 x 157.5 x 8.2 mm
Weight: 185 g
SoC: Qualcomm Snapdragon 845
CPU: 4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 385, Cores: 8
GPU: Qualcomm Adreno 630, 710 MHz
RAM: 6 GB, 8 GB, 1866 MHz
Storage: 128 GB, 256 GB
Display: 6.41 in, Optic AMOLED, 1080 x 2340 pixels, 24 bit
Battery: 3700 mAh, Li-Polymer
OS: Oxygen 9.0 (Android 9.0 Pie)
Camera: 4608 x 3456 pixels, 3840 x 2160 pixels, 60 fps

Blackview P10000 Pro Review

Blackview P10000 Pro Review

Dimensions: 77 x 165 x 14.65 mm
Weight: 293 g
SoC: MediaTek Helio P23 (MT6763V)
CPU: 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 700 MHz
RAM: 4 GB, 933 MHz
Storage: 64 GB
Display: 6 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 11000 mAh, Li-Polymer
OS: Android 7.1.1 Nougat
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Mi 8 Lite Review

Xiaomi Mi 8 Lite Review

Dimensions: 75.8 x 156.4 x 7.5 mm
Weight: 169 g
SoC: Qualcomm Snapdragon 660 MSM8976 Plus
CPU: 4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260, Cores: 8
GPU: Qualcomm Adreno 512
RAM: 4 GB, 6 GB, 8 GB, 1866 MHz
Storage: 64 GB, 128 GB
Display: 6.26 in, IPS, 1080 x 2280 pixels, 24 bit
Battery: 3350 mAh, Li-Polymer
OS: MIUI V9.6 (Android 8.1 Oreo)
Camera: 4032 x 3024 pixels, 3840 x 2160 pixels, 30 fps

Doogee S80 Review

Doogee S80 Review

Dimensions: 82.5 x 172 x 13.6 mm
Weight: 393 g
SoC: MediaTek Helio P23 (MT6763T)
CPU: 4x 2.3 GHz ARM Cortex-A53, 4x 1.65 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 770 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 10080 mAh, Li-Polymer
OS: Doogee OS 2.0 (Android 8.1 Oreo)
Camera: 4032 x 3024 pixels, 1920 x 1080 pixels, 30 fps

Nokia X5 (Nokia 5.1 Plus) Review

Nokia X5 (Nokia 5.1 Plus) Review

Dimensions: 71.98 x 149.51 x 8.1 mm
Weight: 160 g
SoC: MediaTek Helio P60 (MT6771)
CPU: 4x 2.0 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G72 MP3, 800 MHz
RAM: 3 GB, 4 GB, 1600 MHz
Storage: 32 GB, 64 GB
Display: 5.86 in, TFT, 720 x 1520 pixels, 24 bit
Battery: 3060 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4160 x 3120 pixels, 1920 x 1080 pixels, 30 fps

Oukitel WP2 Review

Oukitel WP2 Review

Dimensions: 85.3 x 176.6 x 16.5 mm
Weight: 350 g
SoC: MediaTek MT6750T
CPU: 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T860 MP2, 650 MHz
RAM: 4 GB, 833 MHz
Storage: 64 GB
Display: 6 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 10000 mAh, Li-Polymer
OS: Android 8.0 Oreo
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

Huawei Honor Play Review

Huawei Honor Play Review

Dimensions: 74.27 x 157.9 x 7.48 mm
Weight: 176 g
SoC: Huawei HiSilicon KIRIN 970
CPU: 4x 2.36 GHz ARM Cortex-A73, 4x 1.84 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G72 MP12, 767 MHz
RAM: 4 GB, 6 GB, 1833 MHz
Storage: 64 GB
Display: 6.3 in, IPS, 1080 x 2340 pixels, 24 bit
Battery: 3750 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4608 x 3456 pixels, 3840 x 2160 pixels, 30 fps

Doogee S70 Review

Doogee S70 Review

Dimensions: 80.8 x 171.8 x 13.6 mm
Weight: 278 g
SoC: MediaTek Helio P23 (MT6763T)
CPU: 4x 2.34 GHz ARM Cortex-A53, 4x 1.79 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 770 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 5500 mAh, Li-Polymer
OS: Doogee OS 2.0 (Android 8.1 Oreo)
Camera: 4032 x 3024 pixels, 1920 x 1080 pixels, 30 fps

UMiDiGi Z2 Pro Review

UMiDiGi Z2 Pro Review

Dimensions: 74.4 x 153.4 x 8.3 mm
Weight: 165 g
SoC: MediaTek Helio P60 (MT6771)
CPU: 4x 2.0 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G72 MP3, 800 MHz
RAM: 6 GB, 1800 MHz
Storage: 128 GB
Display: 6.2 in, IPS, 1080 x 2246 pixels, 24 bit
Battery: 3550 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4672 x 3504 pixels, 1920 x 1080 pixels, 30 fps

Oukitel K8 Review

Oukitel K8 Review

Dimensions: 76.4 x 160 x 10.5 mm
Weight: 238 g
SoC: MediaTek MT6750T
CPU: 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T860 MP2, 650 MHz
RAM: 4 GB, 833 MHz
Storage: 64 GB
Display: 6 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 5000 mAh, Li-Polymer
OS: Android 8.0 Oreo
Camera: 4160 x 3120 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Mi A2 Review

Xiaomi Mi A2 Review

Dimensions: 75.4 x 158.7 x 7.3 mm
Weight: 168 g
SoC: Qualcomm Snapdragon 660 MSM8976 Plus
CPU: 4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260, Cores: 8
GPU: Qualcomm Adreno 512, 650 MHz
RAM: 4 GB, 6 GB, 1866 MHz
Storage: 32 GB, 64 GB, 128 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 3010 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4000 x 3000 pixels, 3840 x 2160 pixels, 30 fps

Nokia X6 / Nokia 6.1 Plus Review

Nokia X6 / Nokia 6.1 Plus Review

Dimensions: 70.98 x 147.2 x 8.59 mm
Weight: 151 g
SoC: Qualcomm Snapdragon 636
CPU: 4x 1.8 GHz Kryo 260, 4x 1.6 GHz Kryo 260, Cores: 8
GPU: Qualcomm Adreno 509
RAM: 4 GB, 6 GB, 1333 MHz
Storage: 32 GB, 64 GB
Display: 5.8 in, IPS, 1080 x 2280 pixels, 24 bit
Battery: 3060 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4608 x 3456 pixels, 3840 x 2160 pixels, 30 fps

Ulefone X Review

Ulefone X Review

Dimensions: 73.41 x 150.93 x 9.05 mm
Weight: 217 g
SoC: MediaTek Helio P23 (MT6763V)
CPU: 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 700 MHz
RAM: 4 GB, 933 MHz
Storage: 64 GB
Display: 5.85 in, IPS, 720 x 1512 pixels, 24 bit
Battery: 3300 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4160 x 3120 pixels, 1920 x 1088 pixels, 30 fps

Cubot P20 Review

Cubot P20 Review

Dimensions: 75.25 x 156.25 x 8.5 mm
Weight: 167 g
SoC: MediaTek MT6750T
CPU: 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T860 MP2, 650 MHz
RAM: 4 GB, 833 MHz
Storage: 64 GB
Display: 6.18 in, IPS, 1080 x 2246 pixels, 24 bit
Battery: 4000 mAh, Li-Ion
OS: Android 8.0 Oreo
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

UMiDiGi Z2 Review

UMiDiGi Z2 Review

Dimensions: 74.4 x 153.4 x 8.3 mm
Weight: 165 g
SoC: MediaTek Helio P23 (MT6763V)
CPU: 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 700 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB
Display: 6.2 in, IPS, 1080 x 2246 pixels, 24 bit
Battery: 3850 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4672 x 3504 pixels, 1920 x 1080 pixels, 30 fps

Oukitel K7 Review

Oukitel K7 Review

Dimensions: 78 x 168 x 14.5 mm
Weight: 302 g
SoC: MediaTek MT6750T
CPU: 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T860 MP2, 650 MHz
RAM: 4 GB, 833 MHz
Storage: 64 GB
Display: 6 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 10000 mAh, Li-Polymer
OS: Android 8.1 Oreo
Camera: 4160 x 3120 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Redmi S2 Review

Xiaomi Redmi S2 Review

Dimensions: 77.26 x 160.73 x 8.1 mm
Weight: 170 g
SoC: Qualcomm Snapdragon 625 MSM8953
CPU: ARM Cortex-A53, 2000 MHz, Cores: 8
GPU: Qualcomm Adreno 506, 650 MHz
RAM: 3 GB, 4 GB, 933 MHz
Storage: 32 GB, 64 GB
Display: 5.99 in, IPS, 720 x 1440 pixels, 24 bit
Battery: 3080 mAh, Li-Polymer
OS: MIUI V9.5 (Android 8.1 Oreo)
Camera: 4000 x 3000 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Mi 8 Review

Xiaomi Mi 8 Review

Dimensions: 74.8 x 154.9 x 7.6 mm
Weight: 175 g
SoC: Qualcomm Snapdragon 845
CPU: 4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 385, Cores: 8
GPU: Qualcomm Adreno 630, 710 MHz
RAM: 6 GB, 8 GB, 1866 MHz
Storage: 64 GB, 128 GB, 256 GB
Display: 6.21 in, Super AMOLED, 1080 x 2248 pixels, 24 bit
Battery: 3400 mAh, Li-Polymer
OS: MIUI V9.5 (Android 8.1 Oreo)
Camera: 4032 x 3024 pixels, 3840 x 2160 pixels, 30 fps

Cubot Power Review

Cubot Power Review

Dimensions: 74.39 x 158.39 x 10.75 mm
Weight: 215 g
SoC: MediaTek Helio P23 (MT6763T)
CPU: 4x 2.3 GHz ARM Cortex-A53, 4x 1.65 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 770 MHz
RAM: 6 GB, 1600 MHz
Storage: 128 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 6000 mAh, Li-Ion
OS: Android 8.1 Oreo
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

Doogee BL9000 Review

Doogee BL9000 Review

Dimensions: 78.1 x 162.7 x 13.8 mm
Weight: 275 g
SoC: MediaTek Helio P23 (MT6763V)
CPU: 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 700 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 9000 mAh, Li-Polymer
OS: Doogee OS 2.0 (Android 8.1 Oreo)
Camera: 4032 x 3024 pixels, 1920 x 1080 pixels, 30 fps

OnePlus 6 Review

OnePlus 6 Review

Dimensions: 75.4 x 155.7 x 7.75 mm
Weight: 177 g
SoC: Qualcomm Snapdragon 845
CPU: 4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 385, Cores: 8
GPU: Qualcomm Adreno 630, 710 MHz
RAM: 6 GB, 8 GB, 1866 MHz
Storage: 64 GB, 128 GB, 256 GB
Display: 6.28 in, Optic AMOLED, 1080 x 2280 pixels, 24 bit
Battery: 3300 mAh, Li-Polymer
OS: Oxygen 5.1 (Android 8.1 Oreo)
Camera: 4608 x 3456 pixels, 3840 x 2160 pixels, 60 fps

Xiaomi Mi MIX 2S Review

Xiaomi Mi MIX 2S Review

Dimensions: 74.9 x 150.86 x 8.1 mm
Weight: 189 g
SoC: Qualcomm Snapdragon 845
CPU: 4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 385, Cores: 8
GPU: Qualcomm Adreno 630, 710 MHz
RAM: 6 GB, 8 GB, 1866 MHz
Storage: 64 GB, 128 GB, 256 GB
Display: 5.99 in, JDI IPS, 1080 x 2160 pixels, 24 bit
Battery: 3400 mAh, Li-Polymer
OS: MIUI V9.5 (Android 8.0 Oreo)
Camera: 4032 x 3024 pixels, 3840 x 2160 pixels, 30 fps

Oukitel WP5000 Review

Oukitel WP5000 Review

Dimensions: 81.9 x 168.8 x 13.9 mm
Weight: 276 g
SoC: MediaTek Helio P25 (MT6757CD)
CPU: 4x 2.5 GHz ARM Cortex-A53, 4x 1.6 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T880 MP2, 900 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB
Display: 5.7 in, IPS, 720 x 1440 pixels, 24 bit
Battery: 5200 mAh, Li-Polymer
OS: Android 7.1 Nougat
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

Cubot X18 Plus Review

Cubot X18 Plus Review

Dimensions: 73.6 x 158.5 x 8.55 mm
Weight: 178 g
SoC: MediaTek MT6750T
CPU: 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-T860 MP2, 650 MHz
RAM: 4 GB, 833 MHz
Storage: 64 GB
Display: 5.99 in, IPS, 1080 x 2160 pixels, 24 bit
Battery: 4000 mAh, Li-Ion
OS: Android 8.0 Oreo
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps

Samsung Galaxy S9+ Review

Samsung Galaxy S9+ Review

Dimensions: 73.8 x 158.1 x 8.5 mm
Weight: 189 g
SoC: Samsung Exynos 9 9810
CPU: 4x 2.7 GHz Exynos M3 Mongoose, 4x 1.79 GHz ARM Cortex-A55, Cores: 8
GPU: ARM Mali-G72 MP18, 572 MHz
RAM: 6 GB, 1794 MHz
Storage: 64 GB, 128 GB, 256 GB
Display: 6.2 in, Super AMOLED, 1440 x 2960 pixels, 24 bit
Battery: 3500 mAh, Li-Polymer
OS: Android 8.0 Oreo
Camera: 4032 x 3024 pixels, 3840 x 2160 pixels, 30 fps

Samsung Galaxy S9 Review

Samsung Galaxy S9 Review

Dimensions: 68.7 x 147.7 x 8.5 mm
Weight: 163 g
SoC: Samsung Exynos 9 9810
CPU: 4x 2.7 GHz Exynos M3 Mongoose, 4x 1.79 GHz ARM Cortex-A55, Cores: 8
GPU: ARM Mali-G72 MP18, 572 MHz
RAM: 4 GB, 1794 MHz
Storage: 64 GB, 128 GB, 256 GB
Display: 5.8 in, Super AMOLED, 1440 x 2960 pixels, 24 bit
Battery: 3000 mAh, Li-Polymer
OS: Android 8.0 Oreo
Camera: 4032 x 3024 pixels, 3840 x 2160 pixels, 30 fps

Doogee S50 Review

Doogee S50 Review

Dimensions: 79.8 x 163.9 x 13.3 mm
Weight: 250 g
SoC: MediaTek Helio P23 (MT6763T)
CPU: 4x 2.3 GHz ARM Cortex-A53, 4x 1.65 GHz ARM Cortex-A53, Cores: 8
GPU: ARM Mali-G71 MP2, 770 MHz
RAM: 6 GB, 1600 MHz
Storage: 64 GB, 128 GB
Display: 5.7 in, IPS, 720 x 1440 pixels, 24 bit
Battery: 5180 mAh, Li-Polymer
OS: Android 7.1.1 Nougat
Camera: 4608 x 3456 pixels, 1920 x 1080 pixels, 30 fps