But what good is that if you don’t have enough memory to store the video?

The answer isn’t completely straightforward.

If you have 100 MB of storage free, that’s your limit for recording video.

General, About, Available space in iOS Settings app

It’s impossible to say precisely how much storage space any user has available without seeing their machine.

But let’s make some reasonable assumptions and work from them.

This includes iOS, their apps, music, photos, etc.

Camera, Formats, High Efficiency in iOS Settings

This shows how much unused space you have to store the video you record.

The iPhone’s camera can record video at different resolutions.

Slow-motion at 120 frames/second and 240 frames/second is available on these models.

The video encoding format makes a big difference, too.

TapHigh Efficiency(HEVC) orMost Compatible(h.264).

The figures here have been rounded and are approximate.