Choose one of the six the most popular speed patterns, from 0.25x to 2x. First, you need to transfer your video to computer and then you can try to use movie maker, free online video editor or other programs to convert the speed of video. iPhone video trick slow motion in 2020 Photography tips Add text, speech, video, photos & music to your videos! How to make a video slow mo iphone 11 . You can see a visual of what those white lines look like here: Tap and drag at either edge to shorten the clip from the. Mind, that the final timing will change accordingly. Unless you have used the slomo recording feature to record the video, there is no way to view a video in slow motion from the. 240 fps video will play slower than 120 fps. Ad hd, hand reviewed and 100% ready to use. Launch the settings app on your iphone, scroll down, and tap on camera. Ad edit mp4/dvd/mts/mkv/vob/avi/wmv movie etc. Try vidnami for free for 14 days! To discard this change, tap on ...