Other than outside of can !!!!!
I find that they taste differently.
Here’s the list of ingredients in Coke Zero Sugar:
Carbonated water, caramel color, phosphoric acid, aspartame, potassium benzoate, natural flavors, potassium citrate, acesulfame potassium, caffeine,
Diet Coke is missing two ingredients listed above: potassium citrate and acesulfame potassium. Acesulfame potassium is a calorie-free sugar substitute and potassium citrate is a common additive in beverages.
I think Coca Cola zero sugar is just the original recipe with more sweetener.
Caffeine content maybe?!?!
The difference is that Coke Zero Sugar tastes good.
Coke zero is awesome. Caffeine content is different than diet coke.
Diet Coke is low battery Coke.