When you record a video at 60 fps, how can you play the video back at 24 fps? I saw a friend shooting video at 60 fps and then playing the videos back at 24 fps. Seeing the 60 fps video playback at 24 fps was quite amazing and impressive (dramatic almost slow motion effect)!

He did all of this on what looked like an expensive DLSR device.

My question is:

When you record a video at 60 fps, how can you play the video back at 24 fps?

I tried to edit the video on my pixel 2 but there wasn't anything there for changing the fps. Maybe I will try VLC player.
Using VLC player:


play the video
tap the screen to bring up the controls
click the three dots button
click the"playback speed" button
adjust to 45 - 50% 
done


It doesn't get you exactly the 24 fps but it's something!

I would love to have a way to export the video at 24fps. Or better video editing for built-in Android apps.