Fujifilm 400 (made in the USA) vs. Kodak Ultramax 400 - The Same, or Different? - 35mmc

I can't help but arrive at these two film stocks appearing so close in results that I might as well think of them as interchangeable.

The Best Affordable 35mm Film

B&H about to start selling Fujifilm 400, I Shoot Film

Fuji Superia 400 - Single Roll Review - by Christian Schroeder - 35mmc

Comparing Fuji 400 (Made in USA) to Kodak Ultramax: Are they really the same?, by Robin Férand

Comparing Fuji 400 (Made in USA) to Kodak Ultramax: Are they really the same?, by Robin Férand

Fujifilm 400 (made in the USA) vs. Kodak Ultramax 400 - The Same, or Different? - 35mmc

Comparing Fuji 400 (Made in USA) to Kodak Ultramax: Are they really the same?, by Robin Férand

Kodak Utramax 400 vs. FujiFilm Superia X-TRA 400 - Comparision - The Darkroom Photo Lab

Comparing Fuji 400 (Made in USA) to Kodak Ultramax: Are they really the same?, by Robin Férand

Film Comparison: Kodak UltraMax 400 vs Kodak Gold 200 Pushed One Stop » Shoot It With Film

Cheap 35mm Film Comparison - Kodak Ultramax 400 vs Fuji Superia 400

Fuji Superia X-TRA 400 vs Kodak Ultramax 400 Film Stock Comparison » Shoot It With Film