What is the difference between a Labrador Retriever and a Mastiff?

The Labrador Retriever is 55–80 lbs, 21–25 in sized while the Mastiff is 120–230 lbs, 28–36 in sized. They differ in size (55–80 lbs, 21–25 in vs 120–230 lbs, 28–36 in), lifespan (10–12 years vs 6–10 years), and care requirements.

Which breed is better with kids, Labrador Retriever or Mastiff?

Labrador Retriever is generally good with kids. Mastiff is generally good with kids.

Which breed lives longer, Labrador Retriever or Mastiff?

The Labrador Retriever has a lifespan of 10–12 years while the Mastiff has a lifespan of 6–10 years.

Labrador Retriever vs Mastiff — Breed Comparison

About the Labrador Retriever

The Labrador Retriever has been America's most popular dog breed for over three decades — and for good reason. Originally bred in Newfoundland, Canada, during the early 19th century to help fishermen haul nets and retrieve catch from the icy North Atlantic, the breed was refined in England into the versatile sporting dog we know today. Labs stand 21.5–24.5 inches tall and weigh 55–80 pounds, with a short, dense, water-resistant double coat in three recognized colors: black, yellow (ranging from fox-red to pale cream), and chocolate.

Temperament & Personality

Labrador Retrievers are friendly, outgoing, and high-spirited — they greet nearly every person, dog, and situation with unbridled enthusiasm and a wagging tail. They are exceptionally patient and gentle with children, making them one of the most trusted family dogs in the world. Labs are also remarkably intelligent and eager to please, which is why they dominate as guide dogs, search-and-rescue dogs, therapy dogs, and detection dogs across dozens of working disciplines.

Pros

Outstanding family dog — patient, gentle, and naturally good with children of all ages
Highly trainable and eager to please — consistently ranks among the most obedient breeds
Versatile and adaptable — equally at home on the couch, in the field, or in the water
Friendly and social temperament — gets along well with other dogs, cats, and strangers

Cons

Heavy shedding year-round with major seasonal blowouts — not suited for allergy sufferers
Prone to obesity — Labs are notoriously food-motivated and will eat anything not locked away
High energy in the first 2–3 years — requires substantial daily exercise to prevent destructive behavior
Susceptible to hip and elbow dysplasia, exercise-induced collapse, and progressive retinal atrophy

There's a reason the Lab is the world's favorite dog — discover adoptable Labrador Retrievers on Puplister today.

About the Mastiff

The English Mastiff is one of the most ancient and massive dog breeds, with roots tracing back over 2,000 years to ancient Britain and possibly earlier Molosser-type dogs of Asia. Males commonly weigh 160 to 230 pounds and stand 30 inches or taller at the shoulder, making them among the heaviest domestic dogs in the world. Their short, dense double coat comes in fawn, apricot, or brindle — always with a distinctive dark mask on the face.

Temperament & Personality

Despite their imposing size, Mastiffs are famously gentle, calm, and deeply loyal — often called "gentle giants" with good reason. They are patient and protective with children in their family, though their sheer mass means supervision around small kids is wise. Mastiffs tend to be reserved with strangers but rarely aggressive, preferring to position themselves between their family and any perceived threat.

Pros

Naturally protective without needing guard training
Surprisingly low energy indoors — content to lounge for hours
Gentle and patient temperament ideal for families
Short coat requires only basic weekly brushing

Cons

Massive food bills — adult Mastiffs eat 6 to 10 cups of food daily
Shorter lifespan of 6 to 10 years typical of giant breeds
Prone to hip dysplasia, bloat (gastric torsion), and heart conditions
Excessive drooling is a constant reality with this breed

Ready to welcome a magnificent gentle giant into your home? Explore Mastiff adoption opportunities on Puplister.

Labrador Retriever vs Mastiff