Chihuahuas are compact, small, and elegant dogs with a distinctive presence that belies their size. They typically stand between 15 and 23 cm tall at the withers, with males and females sharing similar size ranges. Weight ranges from 1.5 to 3 kg. They possess delicately balanced proportions and a sturdy yet dainty frame that embodies both strength and fineness.
Size and Build
The breed's body is well-proportioned, with a level back, well-sprung ribs, and a deep brisket. Their hindquarters are muscular, enabling agile movement. The neck is slightly arched, leading to shoulders that are well laid back. Front legs are straight and positioned under the chest, providing freedom of movement. Their feet are small, with well-divided toes, cushioned pads, and neat nails, reflecting careful breed standards.
Coat and Colours
Chihuahuas appear in both smooth and long coat varieties, both accepted within the breed standard. The coat is soft to the touch, often with a natural sheen; long coats may have ruffs or undercoats. Colour options are extensive, including black, tan, blue, chocolate, cream, fawn, gold, red, sable, tricolour, white, and various combinations, with the exception of merle, which is disallowed due to associated health risks. Seasonal coat changes occur, necessitating grooming adjustments.
Distinctive Features
Head shapes vary between the preferred "Apple" dome and the less common "Deer" shape. Apple heads exhibit a rounded skull with a prominent stop and often feature a molera or fontanelle—a soft spot on the skull requiring gentle handling due to potential lifelong vulnerability. Deer heads are wedge-shaped and typically free of this feature, possibly reducing health risks but less favoured in the show ring. Large, erect ears set approximately at 45 degrees complement the skull shape. Eyes are large, round, and well spaced, ranging from dark to ruby or occasionally lighter. The tail is medium-length, set high, and usually carried in a graceful arch over the back during movement.
Gender Differences
Males and females share similar size standards with overlapping ranges of 15—23 cm in height and 1.5—3 kg in weight. Temperament differences are more individual than gender based; muscle mass may be subtly greater in males. Both require consistent training and socialisation to harness their characteristic independence constructively.
Gait and Movement
Chihuahuas move with a confident, brisk gait that mirrors their self-assured personalities. Their stride is purposeful and smooth, with good reach in both fore and hindquarters. Feet and pasterns move parallel without turning in or out, with the topline remaining firm and level during movement. Deviations or exaggerations are considered faults under the Kennel Club breed standard.