Ive noticed a LOT of people in here are worried about replacing their iPhone because it might not be brand new. Right now- all the iPhone 6S/6S+ will be brand new since the launch is so close. But an easy way to tell is by going to settings-----about. If the model number begins with M - its not a "refurb" or "Remanufacture" phone. If the model number begins with N - its a replacement or whatever Apple wants to call it. Models with N are solely replacement products, and once a certain amount of time as passed, they are usually refurbs by apple.