The robot vacuums above are rated best overall. If you are looking for a vacuum robot for hard surfaces such as tile, vinyl, or laminate the Evolution Robotics Hard Floor Cleaner is a great option.
Robotic hard floor cleaner & vacuum. Comes with a pad attachment for dusting of you tile, linoleum, marble, wood and any other types of hard floors. It can also pick up dog hair and crumbs with its vacuum capability. Accessories include a rechargeable battery, A/C adapter and mop attachment for your dry cleaning cloths.