Displaymate have analysed the Note 4 screen.

“Here’s just a few facts – max brightness is 750 nits. Lowest 2 nits. No other smartphone gets close. ”

“Based on our extensive lab tests and measurements, the Galaxy Note 4 is the best performing smartphone display that we have ever tested. It matches or breaks new records in smartphone display performance for: Highest Absolute Color Accuracy, Highest Screen Resolution, Infinite Contrast Ratio, Highest Peak Brightness, Highest Contrast Rating in Ambient Light, and the smallest Brightness Variation with Viewing Angle. Its Color Management capability provides multiple Color Gamuts—a major advantage that is not currently provided by any of the other leading smartphones. The Galaxy Note 4 delivers uniformly consistent all around top tier display performance: it is the first smartphone display to ever get all green (very good to excellent) ratings in all test and measurement categories (except one Yellow for a Brightness Variation with Average Picture Level) since we started the Display Technology Shoot-Out article Series in 2006, an impressive achievement for a display. The Galaxy Note 4 has again raised the bar for top display performance up by another notch.”

And this along with the stylus is why this phone is in my wish list.

More at Gizmodo.