The eufy RoboVac 11S Max is one of our favorite budget robot vacuums, and its now 44 percent off at Amazon, making it only $140. This affordable robot vacuum from a few years back can still trade blows against newer models even without Wi-Fi connectivity. The 11S Max has three power modes Standard, BoostIQ and Max, and the company claims a noise level of around 55 dB. Even so, its suction power is nothing to scoff at. And should it accidentally try to swallow a charging cable, the beeping alerts are loud enough to hear from the opposite end of an apartment. As with the latest robot vacuums, the 11S Max has sensors that prevent collisions and falling down the stairs. Our tests show that it occasionally bumped into objects but also avoided the testers cat play tunnel when other budget vacuums didnt. The 11S Max doesnt have Wi-Fi, but we didnt find that to be a major issue in our testing. The remote control has buttons for scheduling auto cleaning, selecting cleaning modes, manually returning the robot to the charging base and more. Follow @EngadgetDeals on Twitter and subscribe to the Engadget Deals newsletter for the latest tech deals and buying advice.This article originally appeared on Engadget at https://www.engadget.com/deals/one-of-our-favorite-budget-robot-vacuums-is-44-percent-off-right-now-143706102.html?src=rss