When comparing cherry and sweet cherry, it is important to note that sweet cherry is actually a type of cherry. However, in common usage, cherry often refers to the sour or tart cherry (Prunus cerasus), while sweet cherry refers to Prunus avium. Both belong to the same genus but differ in several characteristics.

In terms of fruit type, both are drupes with a single hard pit. The color of sweet cherries ranges from deep red to dark burgundy, while sour cherries are typically bright red or sometimes yellow. The taste is the most distinctive difference: sweet cherries are sugary and mild, whereas sour cherries are tangy and acidic.

Size also varies: sweet cherries are generally larger, with diameters up to 1 inch, while sour cherries are smaller, around 0.5-0.75 inches. Both have a central pit, but the pit of sweet cherries tends to be larger relative to the fruit. The growing season for sweet cherries is early to mid-summer (May-July), while sour cherries ripen slightly later (June-August).

Overall, the choice depends on use: sweet cherries are eaten fresh, while sour cherries are preferred for cooking and baking due to their tartness.