Although cats and tigers are both felines, they are different species with some obvious differences.

First of all, tigers are much larger than cats, weighing up to more than 300 kilograms, while cats generally weigh no more than 10 kg.

Secondly, the appearance characteristics of tigers are also different from cats. Tigers' fur is usually orange or yellow with black stripes, while cats' fur comes in a variety of colors and patterns.

Also, tigers are solitary animals, while cats usually live with humans or other felines.

Therefore, it can be said that cats are not miniature tigers, they are two different species.