I use my IR blaster daily for remote to my home TV/Roku, work TV, TV at my mothers house. It's amazing and useful.
I can't imagine why they wouldn't include it on a new device.
Do you use your IR blaster on your N4?
I use mine all the time for TV and set top boxes at home (sometimes randomly at work or in shops for fun also).
Use the Peel Smart Remote app that came pre-installed. Works very well. I don't get all the functions of the remotes that come with my home devices but one thing it is great for is seeing what's on as opposed to reading text on TV. So I look at what's on and press the one I want to watch and I'm there. What's not to like? Retrograde step to drop it from latest Samsung phones (along with sealed battery and no SD card).