Chihuahuas are known for their small size, typically weighing between 2 to 6 pounds (0.9 to 2.7 kg). They usually stand about 6 to 9 inches (15 to 23 cm) tall at the shoulder. Despite their tiny stature, Chihuahuas exhibit a confident and bold demeanor.

Chihuahuas are known for their lively, alert, and sometimes feisty nature. They are often loyal and affectionate with their owners, forming strong bonds with them. While they can be confident and outgoing, they may also exhibit a more reserved demeanor with strangers. Proper socialization and training from a young age are essential to help them develop into well-rounded dogs.

Chihuahuas can have two types of coats: smooth (short-haired) and long-haired. The smooth coat is glossy, with a soft texture, while the long-haired coat is soft and flowing, often featuring feathering on the ears, tail, and legs. They come in a wide variety of colors and patterns, including fawn, black, white, chocolate, and more.

Chihuahuas adapt well to a variety of living situations, including apartments and smaller homes, as long as their exercise and social needs are met. They thrive in households that provide companionship and attention, as they can become anxious or develop separation issues if left alone for extended periods.

Despite their small size, Chihuahuas require regular physical and mental stimulation. Daily walks, playtime, and interactive games can keep them happy and healthy. They often enjoy activities that involve agility, training, and even tricks. Due to their alert nature, they can also be trained as watchdogs, although their small size may limit their effectiveness in that role.