GoPro announces Hero4 lineup: Digital Photography Review
Amazon.com : hohem iSteady Pro 4 3-Axis Gimbal Stabilizer for Gopro 11/10/9 8/7/6/5, for Osmo Action and Other Action Cameras - Support Bluetooth & Cable Control,IPX4 Splash Proof with Tripod : Electronics
GoPro Hero4 Session In-Depth Review | DC Rainmaker
Feiyu WGS 3-Axis Wearable Gimbal for GoPro Session and FY-WGS
Amazon.com : 3 Axis Gimbal Stabilizer for Gopro Hero 11/10/9, Handheld Stabilizer for Gopro for Video Recording,IPX4 Waterproof, Bluetooth Control, Compatible with Osmo Camera, YI Cam, Insta360, hohem iSteady Pro4 : Electronics
GoPro Image Stabilization - HERO4 Black vs HERO5 Black - YouTube