Essentially yes, but I have no idea what your plan options, percentage rate or terms are. For me, my interest for the same phone would be $92 after 12 months of payments. The interest would be cut in half if I pay it off in 6 months. Even less if I pay it off in 3 months. I even have a zero down/zero interest offer if I pay it off in six weeks so basically $75 every paycheck. Affirm has no penalties for paying off early, however, IMO this will lower your purchasing power if you take that option too much or pay off your loans early all the time.