How small is a teacup chihuahua?

A fully grown chihuahua usually weighs up to about 6 pounds, although some weigh as much as 8 pounds and there are miniature Chihuahuas that weigh little more than 1 1/2 pounds as adults. Most are around 6 to 10 inches in heigth at the shoulders, but some are as tall as 15 inches.

if they weigh more than 6 lbs they or not concidered a true chi