Marques Brownlee has published his review of the GoPro HERO4 Session and addresses some important features and concerns about the new cube-shaped camera. You can see the review in the video above.
The HERO4 Session captures 1080/60p video, as well as the taller frame 1920 x 1440p video at 30fps. It can also deliver 720p video at 100 fps for roughly 4x slow motion when conformed to a 24p edit timeline.