A:AnswerYes, the protector is designed for the specific phone size. I have one installed on a 6s plus and a friend, on his 7plus. It works very well for our phones.
A:Answerits tempered glass but its truly amazing. I've had it on every phone I've owned in the last three years! def better protection than the plastic.
A:AnswerNot a Samsung user, however, I'd be cautious. If you already own the screen protector it wouldn't hurt to try it. But I wouldn't buy one that didn't say Samsung 9 on it.
A:AnswerThe screen protector is case friendly but it goes to the edge of the screen just before it starts curving so it takes up most of the front of the screen but there is still a small gap to the edge. Depending on the case it may be less space. I have a pretty normal thin case and there is a small gap.
A:AnswerThe screen protector comes with an alignment tool that fits on the phone to get the screen protector pretty close to perfect position to install. If you follow the instructions you shouldn't need someone to install the screen protector