Your smartphone camera is great for everyday use but not so much as an action camera. The Kyocera DuraForce Pro smartphone however has three cameras: one in front and two at the back. One of the cameras at the back is an action cam capable of recording full HD videos with 135-degrees field of view. It also has several useful modes like underwater mode, sports mode, slow-mo, and timelapse. There are even plans to release the camera with cases that are compatible with GoPro mounts. The phone itself has a Snapdragon 617 octacore CPU, 2GB of RAM, 32GB of expandable storage, Android 6.0 Marshmallow, a 3,240 mAh QuickCharge 2.0 battery, USB 2.0 and a host of sensors, including NFC, Bluetooth 4.2 and a barometer.
This tech is so old it's no longer available.