The differences in poodle sizes vary.  The Akc and Ckc only recognize the three sizes as of standard, miniature, and toy poodle.  The toy poodle is the smallest registered size.  However, the terms tiny toy and teacup toy have become popular for toy sizes.  They have become known names for small toy breeds.  The teacup size is the smallest size for the toy poodle.  The teacup can weight anywhere up to four pounds and tall as eight inches to the should full grown.  The tiny toy weighs from four pounds up to six pounds and is as tall as eight to nine inches tall.  The toy poodle can grow as tall as ten inches up to the shoulder to be considered a toy poodle.  Teacup and tiny toy poodles are not unhealthy pets, but are the product of generations of small parents being breed to produce a tiny pet.  Small poodles are bred for health and size quality.

 

Poodle Sizes: Pocket poodle, Teacup poodle, Tiny Toy poodle and Toy poodle

Teacup Poodle: Our teacup poodles range from 3-4 pounds and are 8 inches when full grown. Depending on the teacup poodle's size depends upon when it can arrive in its new home. Usually a teacup will be able to go to their home around 10-16 weeks of age.
Tiny Toy Poodle: Our tiny toy poodles range from 4-7pounds and 8 to 9 inches when full grown. Tiny toys can go to their new home at 10-12 weeks of age.
Toy Poodle: Toy Poodles range up to 10 pounds and can be as tall as 10 inches. Toy poodles are ready for their new home at 8-10 weeks.