The Polaris product is on most United twin-aisle aircraft, including the Boeing 777-300, 777-200, 767-300, 787-8, 787-9, and 787-10 aircraft. The exception is some 777-200s flying domestic routes, which have an older first class in a 2-4-2 configuration.
Business class is marketed as Polaris on transatlantic flights on single-aisle Boeing 757-200s, used on some transcontinental and shorter U.S.-Europe routes. However, it is far from the actual Polaris, with a 2-2 layout and older seats.