The default recording format for iPhone is H. 264 QuickTime files in MOV format. ... Although the newer HEVC standard compresses the video file more efficiently, some older devices may not directly open an HEVC file.
Can iPhone record mp4 instead of MOV?
Here's how. Go to Settings > Camera > Format and select Most Compatible instead of High Efficiency. Now your iPhone will keep using the older, larger, more compatible formats.
What format does iPhone use for video?
Your iPhone works only with . m4v, . mp4, and . mov file formats for videos.