The HERO9 Black was announced as the successor to the HERO8 Black on September 1, 2020.
The HERO9 Black essentially contained the features of the HERO8 Black, and improved on certain functions. Most notably, the "HyperSmooth" feature introduced in the HERO7 Black and refined in HERO8 Black was improved on and named "HyperSmooth 3.0". It also features a max resolution of 5K for video and 20 MP for photos and adds a front-facing 1.4-inch color "selfie" screen.