Part number CHDHX-901-RW
This can be had from the GoPro site for $530 plus a 64gb card and a spare battery + 1 Year GoPro Sub.
Wind Noise Reduction, Built-in Microphone, Built-in Wi-Fi, Bluetooth, Time Lapse, Underwater Use, High Dynamic Range (HDR), Touch Screen, Built-in GPS, Waterproof, Image Stabilisation, LCD Screen, Slow Motion
$479