360° Image Quality: 8K30fps 360° video resolution, sharp 5.7K60fps, cinematic 4K100fps and 72MP PureShot photos. 2 Cameras in 1: X4 doubles as a traditional wide-angle action cam with Single-Lens Mode, up to 4K60fps. Magic Third-Person Views: Capture drone-like views with the Invisible Selfie Stick. Battery Life: With a 2290mAh battery, X4 records for 135 minutes at 5.7K30fps.