While HBO Max launched without 4K compatibility, it caught up by making the day-and-date release of Wonder Woman 1984available in 4K. While HBO has definitively stated that Android TV, Chromecast with Google TV, Chromecast Ultra, 4K Fire TVs, Apple TV 4K, and the Android TV-powered AT&T TV support HBO Max in 4K, that’s the entire list at the moment. Requirements: Only select devices support 4K HDR on HBO Max.