GoPro Hero 4: 4k Video, New Processor and Release Date – Air Herald.
- 4k 3840 x 2160 at 30 fps
- 1080p at 120 fps
- 720p at 240 fps
- USB port
There are rumors that the Hero 4 will also have some sort of 3D capability, perhaps paired with another Hero 4 as was done with earlier Hero cameras.