At the budget end of the Roomba selection of vacuums are the 675 robot vacuum and the 614 robot vacuum. The 600 series has added the AeroVac Bin and advanced cleaning head as standard features. In 2017 they released 675 & 690, which have Wi-Fi connectivity so it can be started with an app and various personal-assistant software.
Roomba 600 user manual
The website provides lots of information on topics such as the batteries, and charging, to recommended placement in your home.
The vacuums incorporate a 3-Stage Cleaning System and with Dual Multi-Surface Brushes to help thoroughly clean your floors. I like the fact that the sensors alert your robot about dirtier areas of your home, then clean them more thoroughly, so high-traffic spots stay as clean as the rest of the house. Nice.
The navigation system is semi-random, so the bot looks pretty silly as it bonks around under furniture and occasionally drives in circles, but it’s perfectly effective for cleaning smaller spaces. The build quality is quite good. Battery life is surprisingly good.
Robot vacuums never get bored or distracted, and they don’t mind working every day. In most homes, they keep the floors tidy with barely any effort: pet hair and crumbs just disappear before you even notice a mess.