The Airbus A321 single-aisle medium range-airliner is the largest aircraft in the A320 range. As shown in the Seating Chart example here, Airbus A321 is one of the popular versions of the A32neo, with Airbus' Cabin Flex. It should be noted here that the overhead bins are large, and the plane has a new cabin layout that offers the latest features, like AC/USB Power at every Seat, HighSpeed WiFi, Wireless Entertainment, AirSpace XL OHB, and Mood Lighting. As per the Delta Seating Chart here, the A321nx can accommodate 20 seats for First Class, 47 seats for Main Cabin Extra, and 129 Seats for Main Cabin.
