Cruise lines usually group cabins as inside, ocean-view, balcony and suite, but the same name can mean different dimensions and facilities on different ships. Do not decide from the category name alone.
Four basic categories
Inside cabins have no exterior window and are usually the lowest-priced category. An ocean-view cabin has a window for natural light; it often does not open and the view may be partly obstructed. A balcony cabin adds private outdoor space. A suite may add space, but priority boarding, private lounges or dining areas depend on the operator and fare.
Location matters as much as class
Noise can be more noticeable near lifts, theatres, pool decks or service areas. Guests sensitive to motion often compare cabins lower down and near the middle of the ship, although this is not a guarantee.
Verify before booking
Use the official deck plan to check the cabin number, maximum occupancy, connecting-room status, accessibility features and possible restricted view. When comparing totals, also check whether taxes, gratuities, drinks, internet and suite benefits are actually included.
Related: detailed cabin guide · cruise costs.