It’s not your walking, talking type of robot. But it does one thing very well and could end up being in a lot of homes.
Caia sits in one place (outside or by a window) and turns a mirror so that sunlight is always being reflected into the same part of the same room all day. It is solar powered and weatherproof. All you need to do is buy it for $229 and spend 1 minute setting it up.
Then your gloomy room will be filled with natural light, forever.