The Canon PowerShot ELPH 135 supports a maximum video resolution of 1280 x 720 pixels. That's over three times the video resolution of a 640 x 480 pixels digital camera, which is the most common video resolution supported by cameras of this age and type. 640 x 480 pixels is also supported by this camera. A video resolution of 1280 x 720 is classified as HD and TVs supporting this resolution are referred to as "HD Ready". However the resolution is not as detailed as Full HD (1920 x 1080). The worst video resolution of all comparable spec digital cameras that have been available for a similar time to this camera is 320 x 120 pixels and the best is 1920 x 1080 pixels.
What does "video resolutions" mean?