There are 3 categories of vacuum cleaner models in this category.

1. Vacuum Cleaners that are equipped with a Combination Floor Tool. The advantage of having a combination tool is that this floor tool handles both bare floors and rugs with the flip of a rocker switch, therefore, you don't have to change attachments from one surface to another.
2. Vacuum Cleaners equipped with a dedicated Bare Floor Tool and a dedicated Carpet Tool.
3. Cordless Stick vacuums with smart electro brush that adjusts suction and spin speed based on the surface it is used on. These models are suitable for bare floors and rugs without the need to change attachments.

Please watch this video about the best vacuums for Hardwood and rugs: