I have an 8+ but I'll chime in. I got out of my car one cold morning and knocked my phone out of my hand when closing my car door. The corner of the phone hit the cement super hard and shattered the tempered glass screen protector. Pulled that off, phone under was 100% perfect. Now that it is getting to 28F in the morning, I take it a little easier. Dry California desert + super cold = slippery phone.
I have a Sena wallet case on my phone with an Anker tempered glass screen protector. Pretty sure without the case I'd have had to get a new phone.