Shark vs. Roomba: Comparing top-rated robot vacuum lineups

This would have been a very different article to read had you stopped by any time before March 2025. Before then, iRobot and Shark were both kind of plateauing in terms of the variety of their respective lineups. It was like a competition to see who could be the most mid -- especially compared to the robot vacuums announced at CES. But the lukewarm rivalry got interesting when iRobot went rogue and overhauled the whole Roomba fleet outside of its typical schedule (the company had previously been saving its big product drops for late summer). The new batch consists of eight new Roombas falling under four different umbrellas: the Roomba 105 or 205, or Roomba Plus 405 or 505, ranging in price from 299 to 999.