MOV vs MP4: what's the difference?
October 24, 2026 1 min read
One of the most common questions from iPhone and Mac users: what's the difference between a MOV and an MP4 file, and which one should you use?
MOV to MP4Turn Apple MOV files into MP4.Both are "containers"
MOV and MP4 aren't the video itself; they're containers that hold the picture, sound and metadata together. Both can hold video compressed with the same codec, like H.264 or HEVC, so with the same codec the quality is identical.
The real difference: compatibility
MOV is Apple's QuickTime format. It works perfectly on Mac and iPhone, but Windows, Android, smart TVs and some websites can have trouble with it.
MP4 is an international standard. It opens almost everywhere, from phones and game consoles to social media and presentation apps.
- 1Quality: the same with the same codec.
- 2File size: nearly the same with the same codec.
- 3Compatibility: MP4 wins by far.
- 4Editing: professional Apple apps work more smoothly with MOV.
When should you convert to MP4?
If you'll send the video to a Windows user, upload it to social media or a website, or watch it on a TV, convert it to MP4. If it stays on Apple devices, keeping it as MOV is fine.
Converting MOV to MP4 takes a few minutes in your browser and often makes the file smaller too.