1, the design is different: the blade of the dagger is long, thick and sharp, which is suitable for penetrating the body and causing heavy damage, while the blade of the fruit knife is short and thin, which is not as sharp as the dagger.

2. Different uses: the dagger is a single-edged sharp knife, which is lethal and aggressive for stabbing and fighting, while the fruit knife is a double-edged cutting tool, which is used for peeling fruits and other daily life.