Usually the smaller one is called a 盒子, like a box of matches（一盒火柴）, and the larger one is called a 箱子, like a box of apples（一箱苹果）

盒子 simple is box. It's usual smaller than 箱子。 箱子 can be box，suitcase，traveling case， luggage something like that.

Thanks

I think 盒子 is smaller than 箱子 盒子 like shoes box 、jewelry box 箱子📦 like moving box