Most analog alarm clocks are made of metal or plastic, and some models list glass (usually for the clock face or cover) as a component.

Sizes vary from compact bedside clocks (about 3.8" x 1.7" x 3.3", ~0.28 lb) up to larger square designs (about 5" x 6.96" x 1.89", ~0.63 lb), with several mid-size options near 5.1" x 2.0" x 3.3" (~0.49 lb).

Most have a traditional analog dial-and-hand display with a single alarm function. Common controls include a simple on/off alarm switch and rotary knobs for setting the time and alarm.

Some models add features such as built-in night lights, advertised non-ticking or quiet operation, and battery-only (cord-free) designs for easier placement.

Descriptions and reviews frequently note easy-to-read dials—common features include off-white faces with black numerals and larger faces, which improve bedside readability.

Product listings and customer reviews often call out quiet, non-ticking operation; reviewers also commonly report quiet performance along with a reliable alarm.