Cubot P30 Review

6 September 2020, 09:57:17

Cubot P30 Review
You can buy a Cubot P30 at a promotional price from AliExpress.

Display

The Cubot P30 has a 6.3-inch IPS display with in-cell technology meaning the touch layer and the LCD layer are combined in one, which results in a lighter, thinner, brighter, and more transparent screen. The resolution is 1080 x 2340 pixels (FHD+). According to Cubot, the brightness of the display is 450 cd/m2, however the maximum brightness we could measure was nearing 390 cd/m2. In addition, the manufacturer-specified contrast ratio is 1300:1, however, we measured it being higher - around 1500:1.

Below you will find our measurements of the white and black luminance, static contrast ratio, and color temperature of the display. The measurements are taken in two different ways. The Single Frame measurements are taken with the screen displaying 50% white and 50% black on one frame. The Separate Frames measurements are taken on a fully white (one frame) and a fully black (another frame) screen.

A single frame, 50% white / 50% black

Brightness White luminance Black luminance Contrast Color temperature
100 % 375.296 cd/m2 0.252 cd/m2 1489 : 1 8644 K
0 % 14.668 cd/m2 0.010 cd/m2 1467:1 8533 K

Two separate black and white frames

Brightness White luminance Black luminance Contrast Color temperature
100 % 389.653 cd/m2 0.255 cd/m2 1528 : 1 8562 K
0 % 15.202 cd/m2 0.010 cd/m2 1520:1 8647 K
Unlike other smartphones with IPS displays we have reviewed recently, the difference between the measurements from the two types is not significant. The maximum white luminance is 375.296 cd/m2 (single frame) and 389.653 cd/m2 (separate frames). The contrast ratio at maximum white luminance is 1489:1 (single frame) and 1528:1 (separate frames). The temperature of the white point is higher than ideal measuring an average of 8600 K despite the type of measurement.
Maximum brightness (100% APL)
Oukitel WP2
406.155 cd/m2
Xiaomi Redmi Note 9
406.09 cd/m2
Oukitel K9
405.021 cd/m2
Samsung Galaxy A60
404.203 cd/m2
Oukitel K8
401.167 cd/m2
Blackview BV7000 Pro
393.042 cd/m2
Elephone P8 (2017)
390 cd/m2
Cubot P30
389.653 cd/m2
UMi Touch
386.54 cd/m2
Vernee Apollo
382.946 cd/m2
Xiaomi Redmi Note 4 16GB
381.816 cd/m2
Elephone U
381.74 cd/m2
Cubot King Kong 3
377.162 cd/m2
THL T7
369.9 cd/m2
Oukitel K7000
367.677 cd/m2
The manufacturer specifies 90% NTSC coverage. That's higher than 100% sRGB. The CIE diagram confirms that demonstrating wider than 100% sRGB coverage. Curiously enough, the CIE diagram of the Cubot P30 is identical to that of the Cubot X20 Pro. The display panel has a traditional vertical striped RGB subpixel arrangement.

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