Maybe 300 m^2 or so. The eufy E15 is for up to 800 m^2. There is the eufy E18 for up to 1200 m^2. I have seen other (more expensive, bigger) robots for much l

Maybe 300 m^2 or so. The eufy E15 is for up to 800 m^2. There is the eufy E18 for up to 1200 m^2. I have seen other (more expensive, bigger) robots for much larger lawns. My garden is relatively flat with a few bumps here and there. You can also easily mark some areas of the lawn as always excluded so that it wont drive there.