Pink salmon caviar is orange-red, with eggs ranging from 3 to 5 mm in diameter, and has a more pronounced fish flavor. Ket salmon caviar features larger, light orange eggs (5-7 mm) with a thinner membrane, offering a lighter, creamier taste. Sockeye salmon caviar is smaller and red-orange, with a subtle hint of bitterness. All three types have similar calorie counts, though their flavor profiles vary.