: Fans in Japan can currently stream the series on U-NEXT , which hosts the Ben 10 catalog. It was previously available on HBO Max (via U-NEXT) in Japan.
Localization is more than just swapping words. The Japanese dub of Omniverse adapts Ben’s witty banter into Japanese slang and idioms that resonate with a local audience.
Additionally, a related theatrical release titled Ben 10: Across the Omniverse was released in Japanese theaters on August 3, 2019, further cementing the franchise's presence in the region.
For collectors: Secondhand copies of Japanese DVD volumes (e.g., from Warner Home Video Japan ) occasionally appear on Yahoo Auctions Japan or Mercari.