Amazon.com: Frame Mount Housing Case for GoPro Hero 5 Session, Hero 4 Session, Upgrade Protective Housing Frame Shell Mount Holder with Buckle & Thumb Screw for GoPro Hero 5/4 Session : Electronics
Used GoPro HERO 4 Silver | MPB
GoPro Goes 4K with HERO4 Black, Adds Touchscreen to HERO4 Silver, and Debuts $130 Entry-Level HERO | PetaPixel
GoPro Hero4 Black Review | PCMag
REVIEW: The GoPro Hero 4 Camera | Backpacker Banter
GoPro Hero4 Black review: Smooth 4K video that's still the best in the category - CNET
GoPro Hero 3 / 4 - How to Upgrade Firmware : Beginners Guide - YouTube
Hero4 update page
GoPro Hero 4: Everything You Need to Know - Outside Online
Meet the GoPro Hero4 Session: a tiny camera with big shoes to fill | Engadget
GoPro Hero4 Black Review: A Tiny 4K Triumph | Digital Trends
GoPro HERO4 Black Gets Super Slow Motion Firmware Update with 240fps | CineD