Overall rating grade: IPX is A+, S8 is A+, Note8 is A+
I think displaymate is very good at the techniques but they are crap at presenting/reporting info
When S8 came out they went and say "best display in smartphone"
When Note 8 came out they went and say "best display in smartphone"
When IPX came out they went and say "best display in smartphone"
So are all of them are "best display in smartphone" since all of them got A+? At least give a point rating for finer comparison.
After reading through long winded report, how best is the best?
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Resolution
IPX: 458ppi 5.5mil subpixels (7.5 in from screen for pixel not resolved)
S8/Note8: 570ppi/521ppi 8.5mil subpixels (6 / 6.6 in from screen for pixel not resolved)
Color:
IPX highest accurate color non selectable mode, 2 color GAMUT
S8/Note8, 3 user selectable accurate color screen modes, 4 color GAMUT
Brightness (higher is better)
IPX: Avg (700) , Peak (804), Contrast rating: 141-189
S8/Note8: Avg (485 / 525), Peak (1020 / 1240), Contrast Rating: (128-227 / 122-270 )
Viewing angle (30deg) brightness lost (lower is better)
IPX: 22%
S8/Note8: 29%
Color shifts 30 deg (lower is better)
IPX: 6.2
S8/Note8: 4.8 / 5
Others
IPX: True Tone (auto adjust white balance based on ambient light)
S8/Note8 : Adaptive (with front/back ambient light sensor for better fine-tune brightness/white control),
Always On Display (on-chip support), user adjustable white point/RGB, curved panel,