20% LARGER BATTERY – Larger battery for extended runtime. Compared to other Roomba i series Robot Vacuums CLEANS THE ROOMS YOU WANT WHEN YOU WANT - iRobot OS learns and personalizes your cleaning with Imprint Smart Mapping technology so you can direct it to clean any room you want, any time you want—either on a set schedule or in the moment. SWEEPS UP DUST, DIRT AND DEBRIS WITH EASE - Experience a comprehensive clean with the powerful 3-Stage Cleaning System that pulls in dirt, debris, and pet hair from wherever it hides. PRECISION CLEANING IN TIDY ROWS - Cleans intelligently in straight lines back and forth, to thoroughly clean your floors while navigating around furniture. When it needs to recharge, it will resume right where it left off ensuring a complete clean. FOCUSES ON DIRT - iRobot\'s Patented Dirt Detect Technology allows the Roomba i4 robot to detect dirtier areas of your home and clean them more thoroughly. PERFECT FOR HOMES WITH PETS - Instead of using a single bristle brush, Roomba i4 EVO uses Dual Multi-Surface Rubber Brushes that flex to adjust to different floor types and avoid getting tangled with pet hair. STAYS ONE STEP AHEAD OF THE MESS - The i4 EVO learns your cleaning habits and can offer up suggestions—even suggesting extra cleanings during peak pollen or shedding season. Show More › See more product details