Compact or slim does not indicate a single universal measurement. Width, height, or depth may be reduced, and each change has different consequences for capacity, opening, and connections.
Identify which dimension is smaller
A shallow-depth machine can keep the usual width and height of its product family. A narrow one reduces the width and may use a different drum layout. A compact model can reduce several dimensions, without that meaning temporary connection or mobility.
The internal capacity cannot be inferred by applying a proportional rule to the cabinet. The available volume, the wash system, and program limits determine which garments it can take.
The published depth may leave out necessary space
Check whether the measurement includes the door, controls, and rear protrusions. Allowances and hose routing may need to be added to that dimension according to the manual. A machine with a short cabinet may need more operating depth than its product name suggests.
Loading also requires access: a door that opens, a lid that lifts, a drawer that comes out, and space to reach the laundry. The guide to measuring the washer and the space brings those measurements together.
Use in small spaces
In a cabinet, also check the built-in or under-counter condition. Reducing dimensions does not allow you to remove covers or block vents. If the goal is to store the appliance between uses or connect it temporarily, look at portable washing machines, which are a different category.
There is no one-size-fits-all solution for small homes: the bottleneck may be the hallway turning radius, the opening height, or the depth behind the door, not the nominal width.
Define the dimension that limits your space and check the other usage conditions before interpreting the compact label.