Xiaomi Mi A3 Review

10 August 2019, 02:43:42

Xiaomi Mi A3 Review

Display

Xiaomi Mi A3 is equipped with a 6.088-inch AMOLED display from Samsung with an HD+ resolution (720 x 1560) and 2.5D curved Gorilla Glass 5 for protection. It has a Diamond PenTile sub-pixel arrangement. In this type of sub-pixel architecture, the number of green subpixels (small and elongated) is the same as in a classic RGB stripe one, but the number of red subpixels (mid-size and diamond-shaped) and blue subpixels (large and diamond-shaped) is twice as less. Hence, the panel uses subpixel rendering to preserve the number of pixels as in classic RGB stripe displays with only 2/3rds of the number of dots. Paired to a rather lowly HD+ resolution for a 6.088-inch screen, this means that the text rendering won't be exactly perfect but it's tolerable. An interesting discovery is that the panel used for the Mi A3 uses the same architecture as the one on the iPhone X - it has a slightly different Diamond PenTile arrangement with a higher fill factor than those on the Galaxy smartphones.

According to the manufacturer, the screen has a typical brightness of 350 cd/m2 and a maximum brightness of 530 cd/m2. It supports HDR10 content. Like all other Samsung AMOLED panels, this one is certified that it is safe for your eyes due to low blue light emissions. Being an Android One device, this model does not offer a choice of display modes. AOD is not supported as well and despite the rumours, there's no DC dimming, though the device did get an update while we've been working on this review. The display settings allow for switching on and off a toggle for adaptive brightness but when it's on, this feature does not increase the brightness beyond the maximum to reach a peak level in very high ambient light conditions like the Samsung Galaxy S smartphones do.
APL - Luminance
The graph above combines the results of measuring the peak brightness at different APL %. We have measured a maximum brightness at 100% APL of 346.734 cd/m2 which coincides with Xiaomi's official specifications. The maximum brightness at 10% APL is 450.768 cd/m2.
Peak brightness (100% APL)
Oukitel K7000
367.677 cd/m2
Ulefone T1
367.213 cd/m2
Oukitel K4000 Plus
359.685 cd/m2
Meizu Pro 6
359.682 cd/m2
Ulefone Future
356.372 cd/m2
Doogee Mix
354.655 cd/m2
Oukitel K4000 Pro
352.7 cd/m2
Elephone U Pro
351.963 cd/m2
ZTE Axon 7
350.421 cd/m2
UMi Super
348.054 cd/m2
Xiaomi Mi A3
346.734 cd/m2
Gionee S8
340.969 cd/m2
Ulefone Metal
331.908 cd/m2
AGM X1
331.341 cd/m2
Elephone P9000
327.5 cd/m2
Oukitel K6000 Plus
325.646 cd/m2
Doogee S30
325.164 cd/m2
Xiaomi Redmi Pro Standard Edition
322.178 cd/m2
Vernee Mars
318.723 cd/m2
Alldocube X
286 cd/m2
Oukitel K8000
285.508 cd/m2
Oukitel K10000 Max
270.139 cd/m2
Elephone S8
262.757 cd/m2
Even with a naked eye, one can see that the colours are punchier than usual. The CIE diagram confirms that the display covers a lot more than 100% of the sRGB colour space - that's 102.7% NTSC as specified by the manufacturer. This level nears 100% of the Adobe RGB colour gamut.

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