May I (respectfully) disagree ... to a degree. One can use the "smooth" option as shown.

Note - Increasing the "Crease Angle" to 100 or greater
can produce an almost perfectly round ball from the square box
which has only one polygon per side.

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"

cheers,

dr geep ... :o]

edited 10/5/2019