Puppy breed in the world, and by AKC’s criteria must not exceed six lbs. Chihuahuas known as “teacups” or just, “Teacup Chihuahuas,” are purebred Chihuahuas that drop right into a more compact measurement classification of four lbs. or much less at adult bodyweight. The Chihuahua is out there in 2 varieties: clean coat (brief haired)