After the process is complete, check out the file in the target folder. If you intend to watch the video on a specific device (like an Android smartphone or tablet, iPhone, iPad, PSP, or even TV), you can check out the Devices tab for a preset designed specifically for your gadget. Select a preset with a resolution smaller than the one of the original video but still suitable for your device (for example, if the video was Full HD (1080p), you can choose HD (720p). Open the Video tab and open the MP4 preset list. If you’re willing to try this option, here’s how to compress MP4 by changing the video resolution.Īgain, open the video file with Movavi Video Converter. Be sure to check the resolution your device supports before downsizing and choose the most appropriate parameters. The downside is that if you choose a resolution that’s too small for the screen, you will end up losing quality. So, to shrink an MP4, you may downsize its resolution. If you have a movie in 4K stored on your smartphone, it takes up too much space without giving you the benefit of watching it on a 4K monitor.

Sometimes the reason your MP4 file is so big is its resolution.