The spec'd 'grit' of the Lansky ceramic hones (Fine/UF/Sapphire) is hard, if not impossible, to specify. The product numbers of each of them might be a hint, however (Fine = 'LSS0600', UltraFine = 'LSS1000', Super Sapphire = 'LSS2000'). The 'grit' numbers are really only meaningful when comparing them to each other, instead of trying to compare with other brands or other abrasive types.
I haven't used the Sapphire hone, but have been happy with the Fine/UF hones in the Lansky kit. The 'Fine' 600 hone (red/purple stone in dark blue holder) will begin to produce a hazy polish, and the 'Ultra-Fine' 1000 (white stone in yellow holder) will take it to a mirror, or very nearly so. More easily done when used with water. I've since also lapped my white 1000 hone with a diamond hone to flatten it, and it performs to a 'finer' degree than before, though I've no idea how that would compare to the Sapphire. Either way, I've never really felt the need to get the Sapphire.
David