There are three main variants of the new family, the 737 MAX 7, 737 MAX 8 and 737 MAX 9 which are based on the 737-700, -800 and -900ER, respectively, the best-selling versions of the 737 Next Generation family.
Boeing trdi, da bo MAX imel 16% manj porabo kot klasični A320 in 4% manjši kot A320NEO..Imel naj bi večji ali enak dolet.