Different sources, different types of bread.

1. Panini comes from Italy, while sandwiches come from England.

Panini is a delicacy based on Italian flat bread that is grilled or baked and filled with various ingredients.

Sandwiches are traditional fast food items sandwiched between two pieces of bread.

2. The bread used in Panini is usually Italian flat bread or baguette, with a hard and chewy crust.

There are many types of bread used in sandwiches, including toast bread, almond bread, whole wheat bread, etc., depending on personal taste and preference.