I know many people here tend to use the Bodyguardz Pure, but I have also read some good things about the Armorz Stealth Extreme R, so I decided to e-mail them since their website has yet to offer something for the iPhone 5s/5c. I got a reply that they have tested the current model with the iPhone 5s and it works just fine. The rep also mentioned that if there were any concerns about the thickness they are preparing to launch a .2 mm glass protector in about 2 weeks.
Just thought I'd share the info I have received.