Miniature poodles grow up to 15 inches tall and weigh up to 15 pounds. The chihuahua is one of the smallest dogs out there. They come in long and short-furred varieties and may be almost any color.

All Chihuahuas weigh up to 6 pounds and stand ... at least medium length. All Chihuahua puppies are born with short hair, and it takes about two years to grow out ultimately.