1. The first difference between them is that their appearance will be different, because most crystal pears are oblate, but Sydney is generally oval, and in the crystal, he is generally milky yellow, but Sydney.
2. Secondly, there will be some differences in their ripening time. Crystal pears should belong to an autumn fruit, so they usually mature in mid-October or at school, but Sydney usually matures in summer, probably in late July. So when people buy them, they will find that they are different, but the shelf life of these two fruits is still very long.