Newfoundlands are large and powerful dogs. Adult males typically weigh between 130-150 pounds, while females usually range from 100-120 pounds. Their height generally measures around 26-28 inches at the shoulder, with males being taller and more robust than females.

Newfoundlands are known for their sweet, gentle, and affectionate temperament. They are often described as "gentle giants" due to their calm and friendly nature. Newfoundlands are typically very good with children and can be protective of their families. Their intelligence and eagerness to please make them relatively easy to train, although they may exhibit a stubborn streak at times. Early socialization is essential to ensure they develop well-rounded behavior.

The coat of the Newfoundland is thick, water-resistant, and medium to long in length. Their double coat consists of a soft undercoat for insulation and a coarse, protective outer coat. Common colors include black, brown, gray, and Landseer (white with black markings). Regular grooming is necessary to manage shedding and keep the coat healthy, especially during seasonal changes.

This breed thrives in active households where they receive plenty of love, attention, and exercise. Newfoundlands can adapt to different living situations, including homes with yards, but they require regular outdoor activity and mental enrichment to stay healthy. Due to their large size, they should have enough space to move comfortably and not be confined to small areas for long periods.

Newfoundlands excel in water-related activities, such as swimming and water rescue training, due to their natural affinity for water. They enjoy long walks, playtime, and engaging in interactive games. Participating in dog sports such as obedience, therapy work, and carting can be fulfilling, as these activities allow them to use their strength and intelligence. Additionally, training them in tasks that capitalize on their natural instincts can provide mental stimulation.