You can turn a normal video into slow motion on an iPhone 13 using the free iMovie app or similar editors, even if it wasn’t originally shot in Slo‑Mo mode.

How slow motion works on iPhone 13

Slow motion on iPhone is created by either:

  • Recording at a higher frame rate in the Camera app’s Slo‑Mo mode (120 or 240 fps) and playing it back at normal speed.
  • Editing a regular video in an app like iMovie or Photos to slow down the playback speed.

This means any “normal” video in your camera roll can be turned into a slow‑motion clip through editing.

Method 1: Use iMovie to slow a normal video

This works great for a normal-speed video you already recorded.

  1. Install iMovie (if not installed):
    • Open App Store, search for iMovie , and download it (it is free from Apple).
  1. Start a new project:
    • Open iMovie, tap Create Project → Movie.
  1. Choose your normal video:
    • Select the clip from your Photos library, then tap Create Movie at the bottom.
  1. Open speed controls:
    • In the timeline, tap the video clip so it is highlighted, then tap the speed icon (looks like a speedometer).
  1. Slow it down:
    • Drag the speed slider to the left (e.g., 0.5x or 0.25x) to make the video play in slow motion.
 * You can split the clip and apply slow motion only to certain parts for more cinematic effect.
  1. Save the slow‑motion video:
    • Tap Done , then tap the Share button and choose Save Video to export it back to your Photos app.

This gives you a proper slow‑motion file you can post on social media or share like any other video.

Method 2: Basic slow‑mo using Photos (if supported)

Some newer iOS versions let you apply simple speed changes via built‑in editing or third‑party extensions.

  • Open the Photos app and select your normal video.
  • Tap Edit ; depending on your iOS and any installed extensions, you may see options from third‑party apps to slow the video.
  • Apply the slower speed and tap Done to save your changes.

If you don’t see a clear speed option there, iMovie or another editor (like CapCut or Adobe’s mobile tools) will give you more control.

Method 3: Record future videos in Slo‑Mo

For future shots, you can get smoother results by recording directly in Slo‑Mo on your iPhone 13.

  • Open the Camera app and swipe to Slo‑Mo.
  • Tap the red Record button, then tap again to stop; the clip will already have slow‑motion applied.
  • To adjust which part is slow:
    • Open the video in Photos , tap Edit , and drag the thicker section in the timeline to set where slow motion starts and ends.

Recording at high frame rates like 120/240 fps keeps the slow motion smooth and sharp, especially for fast action like sports or water splashes.

Mini FAQ and notes

  • Does this work specifically on iPhone 13?
    Yes, iMovie and Slo‑Mo recording both work on iPhone 13 models, and the steps above are designed with that device generation in mind.
  • Can I go back to normal speed later?
    You can always open the edited video again in iMovie or Photos and reset or adjust the speed slider back toward normal (1x).

TL;DR: For “how to make a normal video slow motion iPhone 13,” edit the clip in iMovie, use the speed control to slow it down, then save it back to Photos; for the smoothest future slow‑mo, shoot directly in the Camera app’s Slo‑Mo mode and fine‑tune the slow section in Photos.

Information gathered from public forums or data available on the internet and portrayed here.