Exactly: IR. Infrared. Which inherently is safe.
in total, the XR has 61 % more pixels than 720p HD. And 28.4 % less than 1080p Full HD.
I'm going to make this easy for those that can't seem to grasp that this isn't a 720p screen
720p = 921,600 pixels
Xr = 1,483,776 pixels
8+ = 2,073,600 pixels
I can't imagine that 1.5 million pixels is going to look bad on a 6.1 inch screen.