The materials are different and the packaging is different.

1. According to the query on Sohu Food Network, the materials are different: bento refers to Chinese hot dishes, rice, soup, etc., which are rich in materials, while bento is a simple single-item meal in Japanese style, including rice, sashimi, sushi, etc.

2. Packaging is different: lunch boxes are packaged in plastic boxes, drinks are packaged in milk cartons and other plastic packaging, while bento boxes are in a flowerpot-shaped black box and come with accessories such as chopsticks and sauces.