A:AnswerYes it will fit with your Otterbox defender pro case. My daughter had the same case and it fit perfectly. You have to remove the phone from the case before placing it on the screen. I don’t have an Otterbox case but that is how I placed mine and how I’ve watched the store associates place the screen. Hope this helps and clears up any confusion.
A:AnswerI have the Otterbox Defender case (with their plastic protector on the case removed) on mine and it fits fine It doesnt interfere with the sides of the case at all. Not sure about the Commuter though.
A:AnswerIf other stores don't have availability, you can always register your product at www.zagg.com/register and go through the ZAGG warranty program. Thanks for using ZAGG!
A:AnswerI it breaks later just bring in your receipt with the phone and you will get a free replacement. If you want them to install it, however, there is a service fee of about $7 no matter who installed it last.