Although both missions are commercial, there are differences between the projects. The NS-26 flight lasted just ten minutes and was intended to cross the Kármán Line with civilians on board.
SpaceX's Polaris Dawn, on the other hand, is financed by billionaire Jared Isaacman, who is among the crew members of the Dragon spacecraft, and aims to exceed an altitude of 1400 km, something that has not been achieved since the Apollo missions, to carry out the first “ walk” of civilians in space.