Fits iPhone 6 (without case), iPhone 5 (with a large case such as Otterbox/Lifeproof) or Samsung Galaxy S4/SIII up to 5.5"
Xtreme™ i-30 Armband for iPhone 5 with Otterbox
Fits iPhone 5 with Otterbox and similar sized protective cases.
Xtreme i-30™ Armband for iPhone 6
Fits iPhone 6 without a case