Review the dimensions, color and other physical and visible characteristics of the upright vacuum.
If the upright vacuum is cordless (or corded), as well as suction and motor information.
Cleaning characterstics of the upright vacuum including its filter, cyclonic action and if it is rated for use in homes with pets.
Nozzles, cleaning heads, brushes and other accessories included with the upright vacuum.
The surfaces the vacuum cleaner is capable of cleaning.
The manufacturer warranty and certifications for the vacuum.