Amazon.com : 3 Axis Gimbal Stabilizer for Gopro Hero 12/11/10/9/8, Handheld Stabilizer for Gopro for Video Recording, IPX4 Waterproof, Bluetooth Control, Compatible with Osmo Camera, Insta360, hohem iSteady Pro4 : Electronics
Quark is the world's smallest GoPro stabilizer - Videomaker
Amazon.com : hohem iSteady Pro 4 3-Axis Gimbal Stabilizer for GoPro 12/11/10/9 8/7/6/5, for Osmo Action and Other Action Cameras - Support Bluetooth & Cable Control, IPX4 Splash Proof with Tripod : Electronics
Hohem iSteady Pro 4 Action Camera Gimbal 3-Axis Splashproof Stabilizer – GoPro, DJI OSMO Action, Insta360 ONE R, Sony RX0 – Design Info
GoPro Karma Grip gimbal now available as stand-alone product: Digital Photography Review