With its 1080p capabilities, the iPhone 4S is a pretty good option for on-the-go HD video recording. However, it’s certainly no entry-level DSLR—due to its limited functionality—though apps increasingly enhance the camera. Take SloPro, for instance. A new (free!) app, it allows any iPhone 4S owner to shoot slow-motion video at 60 frames per second, toggling the speed as you record. A built-in editor even allows users to trim video clips, as well.
Download it here.