Neato Botvac D4 Connected review: Top-end features at a mid-range price

Typically, you have to open your wallet wide to get a robot vacuum with mapping and other advanced capabilities. But Neato’s Botvac D4 Connected, currently $400, brings the favorite features of its advanced vacuums—laser navigation, virtual boundaries—well within the reach of those with more modest budgets. The D4 Connected boasts Neato’s signature D-shaped design, which allows it