what are the main differences between the 2 golf balls other than their name

Black is a 3 piece ball that is geared more towards distance & less on spin & feel, whereas the Platinum is a 4 piece ball that is geared more towards spin & feel & less focused on distance. The Platinum actually spins more that the ProV1.

Nike One Platinum is a four piece ball with a spin rate of over 13,000 rpm. It has the fastest spin rate of any golf ball on the market. It was specifically designed for Tiger Woods so u wo not get the kind of distance with that ball as u would the One Black because it was designed for the player who is not concerned about distance off the tee. Obviously, distance is not an issue for Tiger. The One Black is a 3 piece ball geared more for distance. It has the 3rd fastest spin rate of any golf ball on the market. In a product test, golf balls were tested for distance & the One Black was 10 yards longer than the One Platinum for someone with an average swing speed(b/w 95-100 mph).