Many Android phones can record video up to 2K resolution now, but the default Camera application on iPhone 5S is limited to 1080p resolution.
If you want 2K Video Recording on your iPhone 5S, you can use CameraMAX.
Camera MAX will enable your device to become a super high quality video recorder. No hardware upgrade is required.
CameraMAX has 15 built-in filters for video effects.
CameraMAX produces small file output with H.264 encoding.
iTunes link
Lite version - https://itunes.apple.com/us/app/cameramax-2k-video-recording!/id899988080?ls=1&mt=8
Ultimate version - https://itunes.apple.com/us/app/cameramax-ultimate-2k-video/id892809743?ls=1&mt=8
If you want 2K Video Recording on your iPhone 5S, you can use CameraMAX.
Camera MAX will enable your device to become a super high quality video recorder. No hardware upgrade is required.
CameraMAX has 15 built-in filters for video effects.
CameraMAX produces small file output with H.264 encoding.
iTunes link
Lite version - https://itunes.apple.com/us/app/cameramax-2k-video-recording!/id899988080?ls=1&mt=8
Ultimate version - https://itunes.apple.com/us/app/cameramax-ultimate-2k-video/id892809743?ls=1&mt=8