Prior to 1923, costly 35mm film stock was the standard for movie cameras. However, when Eastman Kodak released 16mm film stock, this lower-cost alternative sparked a new market fueled by amateur movie makers. While dismissed at release as inferior, 16mm film remained in production until the late 2000s, when digital movie cameras rose to prominence.
Ultimately, your choice in action camera should come down to performance and ease of use. We've filmed hours of footage with many of the major contenders to determine where each device stands in the field. Some excel in all manner of extreme situations, while others can fall apart underwater or once the sun goes down. And what good is an action cam if it's not built for action? Then there's resolution and video quality. You'll want a camera that can record in 4K for sure. The top-end models from DJI and GoPro offer 60fps 4K with digital stabilization that's absolutely incredible. They're also not limited to ultra-wide views; you can set a narrower angle to remove lens distortion, making them solid choices for vlogging and travel logs.