How to capture still frame from video on iOS?
No, there is no option in the photos app to extract a single frame.

Depending on the video resolution you may or may not end up with a lower resolution screenshot. If your video resolution is higher than the screenshots' resolution, you end up with a lower resolution image in the end. Read more about video resolution on iPhones and screenshot sizes.

The easiest way though would be to either use a third party app or - if you import the videos to a computer anyway - do it on a Mac/PC.



More about this: different methods, Apple Community