With each new Galaxy S or Galaxy Note flagship, Samsung continues to improve its AMOLED displays, and the company could have done its best work with the display on the Galaxy S5, according to the display experts over at DisplayMate. DisplayMate compared the display on Samsung's latest flagship to existing phones, and found it to have the best overall display, especially in color accuracy, brightness levels, viewing angles, and contrast. The Galaxy S5's display was found to have the most accurate colors for any smartphone or tablet when Cinema Mode is activated, and it was also the brightest display ever tested by DisplayMate, having the ability to reach 698 nits of brightness when automatic brightness was enabled.
The OLED display on the Galaxy S5 was found to be more power efficient as well (up to 27 percent more efficient than the Galaxy S4), though overall power efficiency continues to be a weak spot for Samsung's OLED technology when compared to LCD displays. But that's a small blip on what is otherwise an excellent display that showcases how far Samsung has come since it first introduced an AMOLED display on the Samsung Wave in 2010, and suggests that the Korean manufacturer could soon achieve perfection with future devices, like the Galaxy Note 4 or Galaxy S6.
You can check out the source link for full details on the tests performed and the results of the display test.