The S5 improves over the S4 in pretty much every single way, brightness is vastly improved allowing the S5 to reach a brightness of 650+ Nits on auto brightness while screen reflectance has been reduced. Color accuracy is also vastly improved.
Even more impressive is that when Automatic Brightness is turned On, the Galaxy S5 hits an incredible 698 cd/m2 in high Ambient Light, where high Screen Brightness is really needed, which is 47 percent brighter than the Galaxy S4 and 6 percent brighter than the Note 3 with Automatic Brightness turned On – it’s the brightest mobile display that we have ever tested.
The Galaxy S5 display delivers 22 percent higher Brightness than the Galaxy S4 with the same display power. Taking into account its 4 percent larger screen area, the Galaxy S5 has an impressive 27 percent improvement in display power efficiency over the Galaxy S4. Turning this around, for the same screen Brightness the Galaxy S5 uses 18 percent less display power than the Galaxy S4, which helps improve the running time on battery.
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