If you're running iOS 9 on an iPhone 6, 6 Plus, or newer, you have the ability to change what resolution the back camera records video at. A lower-quality setting can be the way to go if you're low on storage, or if you simply don't need all those extra pixels. You can do this for both slo-mo videos and standard video recordings. Making the switch is fast and easy — here's how.
Go to Settings > Photos & Camera, tap either Record Video or Record Slow-mo, and select your preferred resolution from the listed options.
Keep in mind that the higher the resolution and frame rate, the more space the finished video will take up on your iPhone. For instance:
Standard video recording
- 720p HD at 30fps: 60MB per minute
- 1080p HD at 30fps (default resolution): 130MB per minute
- 1080p HD at 60fps (smoother video): 200MB per minute
- 4k (highest resolution; iPhone 6S and 6S Plus only): 375MB per minute
Slo-mo video recording
- 1080p HD at 120fps: 375MB per minute
- 720p HD at 240fps (most frames, default): 300MB per minute