small-scale vs pocket-size

small-scale and pocket-size both are adjectives.

Word	Noun	Adjective	Verb	Adverb
small-scale	No	Yes	No	No
pocket-size	No	Yes	No	No

As adjectives, small-scale and pocket-size are synonyms defined as:

Other synonyms of small-scale include minor, modest, pocket-sized, small.

small-scale (adjective)	pocket-size (adjective)
relatively moderate, limited, or small	relatively moderate, limited, or small
created or drawn on a small scale	small enough to be carried in a garment pocket