How to Take Photos While Recording Video on an iPhone
If you have one of the compatible iOS devices, here’s how to snap a photo while taking a video: All still photos you take while recording a video are saved to the Photos app, just like any other photo.
The One Drawback: Photo Resolution
There’s one important thing to know about the photos you take while recording video on an iPhone: They’re not the same resolution as photos you take when you’re not also recording video. The standard photo taken with the back camera on an iPhone 8’s 12-megapixel camera is 4032 x 3024 pixels. The resolution of the photos taken while the phone is recording video is lower and depends on the resolution of the video. Photos taken during 4K video recording are higher resolution than those from 1080p videos, but both are lower than the standard photo resolution. Here’s how the resolution breaks down for recent models:
