All Reolink Products.
The image quality of live view or playback is affected by three parameters. They are Resolution, Frame Rate (fps) and Bitrate, to find or change the encode parameters, please go to Device Settings > Record > Encode.
Resolution: Resolution refers to the number of pixels in an image. Resolution is sometimes identified by the width and height of the image as well as the total number of pixels in the image.
The higher the resolution is, the better the image quality you will get. The highest resolution that Reolink camera supports is 5MP now.
Frame Rate: (expressed in frames per second or fps) is the frequency (rate) at which consecutive images called frames to appear on a display. Frame rate describes the speed of recording. The more frames recorded per second, the more accurate motion is documented onto the recording medium.
The highest Frame Rate that Reolink camera supports is 31fps for NTSC or 25fps for the PAL.
Bitrate: A video bitrate is the number of bits that are processed in a unit of time, the bitrate control corresponds to video quality and the file size. In general, the higher the bitrate is, the better image and audio quality will be, and the bigger the file size will be.