Let’s see how long it will work; there’s a reason almost no phone manufacturer includes that feature. Sony has it on some of their phones like the 5 IV. The problem is you can record for maybe a minute before the phone starts to overheat and has to stop recording.

It will get so hot a warning will pop up on screen telling you to watch where you touch the phone or you could burn yourself. Maybe Samsung will have figured out the overheating issue, but I expect it to be a problem.