As has been discussed on here, the iPhone 6 Plus downsamples the 3x 1242x2208 to the 1080x1920 display. This is explained here.
There have been at least one mention of potential issues from arstechnica
FTA:
"We didnt see any visible blurriness as a result of this scaling, though some UI animations and transitions seemed to be a little choppier than they are on the iPhone 6 or our iPhone 5Swell need to wait for our full review to see just how the A8 chip handles the resolution change."
How concerned are you about potential issues with this?
There have been at least one mention of potential issues from arstechnica
FTA:
"We didnt see any visible blurriness as a result of this scaling, though some UI animations and transitions seemed to be a little choppier than they are on the iPhone 6 or our iPhone 5Swell need to wait for our full review to see just how the A8 chip handles the resolution change."
How concerned are you about potential issues with this?