900p vs 720p is just one difference.
Now that we know that The Legend of Zelda: Breath of the Wild is going to be featured on both the Nintendo Switch and the Wii U, the company has shed some light on the similarities and differences between the two versions. We already knew that the Switch will render at 900p (on TV) vs 720p on the Wii U.
The company released some other comparisons that hadn’t been widely known to IGN recently and among those comparisons was the revelation that Switch will have better environmental sounds. The company has said this means that the “sound of steps, water, grass, etc. are more realistic and enhance the game’s Open-Air feel.”
Certain icons will be different between the two versions and the special edition and master edition of the title will not be available on the Wii U. All of that seems to indicate Nintendo knows the Wii U is officially on the way out.
Differences between the Nintendo Switch And Wii U versions of The Legend of Zelda: Breath of the Wild.