Both are open bed-slingers with AMS lite multicolor, the same 300C nozzle and the same beginner-friendly philosophy. The A1 mini's 180 mm cube covers toys, gadgets and small functional parts on a desk corner. The A2L's 330 x 320 x 325 mm envelope covers helmets, large enclosures, and one-piece prints the mini would need to split into six.
The honest question is what you will actually print. Most beginners overestimate their size needs; a mini plus $250 of filament produces more finished objects than an empty A2L. But if cosplay, RC bodies or organizational prints are the plan, buy the volume once.