The PowerShot A3400 IS supports a maximum video resolution of 320 x 240 pixels. That's 75% less video resolution than a 640 x 480 pixels digital camera, which is the most frequently found video resolution supported by cameras of a similar age and spec to the PowerShot A3400 IS. 640 x 480 pixels is also supported by this Canon digital camera.
A 320 x 240 pixels video resolution is in fact the worst supported video resolution across all compact camera digital cameras that have been around for a similar time to the PowerShot A3400 IS.
A 1920 x 1080 pixels video resolution is the best supported video resolution amongst comparable types of digital camera.