Bantam and Pocket-sized

Bantam adjective - Of a size that is less than average.

Pocket-sized and bantam are semantically related In some cases you can use "Pocket-sized" instead an adjective "Bantam".

Pocket-sized adjective - Small enough to be carried in a garment pocket.

Bantam and pocket-sized are semantically related in quantity topic. You can use "Bantam" instead an adjective phrase "Pocket-sized", if it concerns topics such as tiny.