Regardless of the model that you pick, either one will be waterproof, and not only that, it will be waterproof all the way to 50 meters, which means you can surely do a spot of diving without having to get an extra protective case for the Garmin VIRB action camera.
It will sport a 1” screen that makes it a snap to configure settings in double quick time, while a couple of hours of battery life too, should be able to be adequate, as you shoot 1080p video at 60 frames per second. Apart from that, the G-Metrix system will definitely be worth checking out since it obtains data from the GPS, accelerometer, gyroscope, and compatible wireless sensors, resulting in graphical overlays right smack on top of your videos.
Expect the VIRB XE to retail for $399 a pop, where it offers 1440p at 30 fps and the ability to capture 12MP stills, too, while the VIRB X is a Benjamin more affordable, as you capture 720p video at 30 fps or 720p footage at a smooth 60.