I have an iPhone 5 but I am sure this would work with the 6. I use an Otterbox Defender case. I take the holster that comes with it and zip tie it to the stem. You can make some kind of spacer if you need too to go between the stem and holster clip. I have been using this method for almost a year and have never had the phone come out of the mount. I just looked and they are making this case for the iPhone 6.