I do not use a screen protector. They do not cost much money to buy, and are generally made to protect a phone from scratches. The material that makes up a screen is highly concentrated so unless you are careful against scratches you do not need to purchase one.
On my new phone, I do. A guy at work gave it to me, so I honestly have no idea what brand or anything it is. The case is just a hard case with a rubber outside; nothing fancy, but it gets the job done. I've actually dropped it 10 feet onto a hard surface (long story ) and it was fine. I also use a screen protector, specifically an Armorsuit.
I have an iPhone7. I thought about getting it an outterbox case, but I find them to be either ugly or bulky. So I tend to buy cases for looks over protection. The case I have now is perfect (it's not an outterbox or will it protect like one), but it offers some protection against drops and it's very pretty. :3 Let me see if I can find a link to my case.
Yup! I have an iPhone 6 and it's in an Otter Box case. I can't begin to tell you how many times my phone has taken the plummet from my hands to the floor, but because of the amazing case, it has survived with no damage. Note, I'm knocking on wood in real life now (don't wanna jinx myself, seriously 🙄)
I've never liked having a case on my phone. Using an HTC M8 since it came out. I've dropped it a couple times so it's slightly chipped, but I never really notice the little defects.