Best smartphones for video recording 2016

What do a smartphone needs to be good for video recording?
The quality of the camera of a smartphone is based primarily on how many megapixels it has and the processing of moving images, or definition. Thus, the best phones to record videos will be those that meet certain key requirements for any smartphone. These are:
1. An acceptable amount of megapixels (1 megapixel equals 1 million pixels, and this in turn is equivalent to the resolution of the camera, and how much higher definition it has when recording, the better).
2. A suitable shutter, resulting in greater capture of light (and is defined as f: the smaller the better, although that may affect the depth of field).
3. A software that includes many ways to process the moving image before or after it (optical image stabilization, face detection, etc.) and to help improve color capture and minimize the decrease in depth of field.
4. The quality of the sensor, especially if we want to get good movement images beyond our talent.
Therefore, we must choose a smartphone with good: (1) ammount of megapixels, (2) speed of the shutter, (3) software and (4) the quality of the sensor.