My iPhone is in a Griffon Survivor case, so is fairly bulky. I've never really trusted the belt clip that came with the case and have been on the look out for something to use as a belt pouch for a while now. I've tried a 5.11 AR mag pouch which was ok, if not very stiff. I saw this pouch on Viper Tacticals web site and knew it was what I had been looking for. Great retention yet easy access to my phone and, (as it is adjustable), it should fit most smart phones on the market, so when I get another phone, it should fit that too. If you're looking for a belt pouch for your phone, give this pouch a try, you wont be disappointed.