Compared to the Olympus Tough TG-6, the Nikon COOLPIX can capture higher resolution images with more versatile zoom range. But the TG-6 has a brighter lens (f/2.0 versus f/2.8 in the Nikon), as well as the ability to shoot photos with higher ISO, so it's better in low-light photography. The Olympus also has higher burst-capture capabilities than the Nikon (20 versus 7 frames per second).
Is GoPro a good camera?
The Blackmagic Pocket Cinema Camera is one of the most exciting cameras on the market right now for video. It provides the average videographer with high-end recording options that were previously inaccessible with a small budget. For underwater video, the Blackmagic Pocket Cinema Camera with the Nauticam BMPCCII Underwater Housing is arguably the most enticing video system on the market right now.