Apart from that, Bluetooth 4.0 connectivity is also supported just like the Macbook Air, albeit a low power version of the spec. There was also another version of the iPhone 4 making an appearance on the FCC earlier today, sporting several design tweaks such as a Wi-Fi/Bluetooth module which has already been soldered onto the main printed circuit board. It will be known as the A1332, which is similar to the original iPhone 4. With the benefit of hindsight, this is most probably the 8GB model of the iPhone 4 that is offered for just $99 on contract, while those who prefer the far older iPhone 3GS can always get it for free – on contract, of course.