Pocket-sized
Part of speech: adjective
Definition: small enough to fit into a pocket small-scale, downsized
Modest
Part of speech: adjective
Definition: Not bragging or boasting about oneself or one's achievements, unpretentious, humble.Small, moderate in size.(especially of behaviour or clothing) Avoiding being sexually suggestive.
Example sentence: Enjoy the magic of compounding returns. Even modest investments made in one's early 20s are likely to grow to staggering amounts over the course of an investment lifetime.