As Apple prepares to unveil a new series of sleek, sealed, impeccably packaged iPhones on Tuesday, it has little to fear from a scrappy rival launching a smartphone so loosely assembled that it is delivered with a screwdriver in the box. The Fairphone 3 also comes without a charger or earphones, but does include a rubber bumper to help prevent it from breaking and falling apart if you drop it. While Apple’s watchword is style, Fairphone’s is sustainability.