the best Portable dishwashers and countertop dishwashers are both alternatives to built-in models, designed primarily for those who have space constraints or live in rentals. Portable Dishwashers: These are usually standalone units equipped with wheels, allowing them to be rolled away when not in use. They are connected to the sink via a hose and faucet adapter. Their capacity is generally greater than countertop models, sometimes nearly matching that of standard built-ins. Countertop Dishwashers: These are compact units that sit directly on top of a kitchen counter. They also connect to the sink using a hose. Their small size makes them perfect for single individuals, couples, or those living in tight spaces like studio apartments. However, their capacity is limited, usually accommodating up to six place settings.