Stubble Length - How Short is Too Short?

I’ve been experimenting with different stubble lengths and I’m wondering what you guys think is the perfect length. Is 0.4mm too short or is it better to go for something a bit longer like 5mm? What’s your experience with stubble beards?

hey so ive been rocking the stubble look for ages n honestly its rly depends on ur face shape! like if u got an oval face u can totally pull off that tight 0.4mm look but rectangular faces need more like 5mm to look balanced ya kno

personally i found that starting w like 3mm is a good sweet spot to test the waters… u can always go shorter if ur not feeling it but its harder to grow it back quick if u cut 2 short lol

also dont forget 2 moisturize n stuff cause short stubble can get itchy af trust me learned that one the hard way