The Hero4 Session is the smallest GoPro yet. In fact, it’s 50 percent smaller and 40 percent lighter than the rest of the Hero4 series. It’s not only easily mountable; it’s easily wearable, and, waterproof (up to 33 feet) without any extra casing.
It’s also easy to accessorize. Best Buy will have 13 accessories for the Hero4 Session at launch, including those all-important mounts.