Choosing between two large breeds usually comes down to four things: adult size, coat and grooming load, how much drive the dog carries, and whether it was bred to work alongside people or to think for itself. This page puts every head to head comparison on Our Large Dogs in one place, grouped by the kind of dog you are actually deciding between, with the short answer for each pairing so you can find the right guide in a few seconds.
Most people arrive at a breed comparison with a shortlist of two. You like the look of both, the breeders say lovely things about both, and the question you cannot get a straight answer to is which one actually fits your house, your schedule and your floors. These guides are written for that moment. Every one covers adult size, build, coat, temperament, exercise need and the growth timeline, so you can see where two similar looking breeds genuinely differ.
How to use these comparisons
Two large breeds that look alike in photographs can live very differently. Before you read any pairing, it helps to know which of these four questions matters most to you.
- Adult size. The gap between a 90 pound dog and a 150 pound dog is not just weight. It changes your car, your vet bills, your furniture and how much dog you can physically hold on a lead.
- Coat and shedding. A long double coat and a short single coat are two different daily commitments, whatever the temperament chart says.
- Drive and biddability. Some breeds want a job and a partner. Others were bred to work alone all night and make their own decisions. Neither is better, but they suit very different homes.
- Growth window. Bigger breeds build their frames for longer, which shapes feeding and exercise for the first two years or more.
Giant gentle working breeds
These are the heavy coated giants bred for rescue, draught work and guarding livestock. The questions here are usually about size, drool, shedding and how much dog a family can realistically manage.
Newfoundland vs Saint Bernard
The Saint Bernard is heavier at 140 to 180 pounds. The Newfoundland reaches 130 to 150 pounds and was bred to swim.
Leonberger vs Saint Bernard
The Leonberger is taller but leaner at 110 to 170 pounds. The Saint Bernard is stockier and carries the heavier head.
Saint Bernard vs Great Pyrenees
The Saint Bernard wants to be with people. The Great Pyrenees is an independent guardian who patrols and barks at night.
Bernese Mountain Dog vs Newfoundland
The Newfoundland is the bigger dog at 130 to 150 pounds against 80 to 115 pounds for a Bernese male.
Bernese vs Greater Swiss Mountain Dog
The Swissy is bigger at 115 to 140 pounds with a short easy coat. The Bernese carries the long silky coat that sheds hard.
Great Pyrenees vs Anatolian Shepherd
Both guard livestock. The Pyrenees is heavier and softer in the house, the Anatolian leaner, fitter and more serious.
Guardian and mastiff types
Broad heads, serious presence and a lot of dog in a small space. Here the real differences are drive and indoor manners rather than looks.
Great Dane vs English Mastiff
The Dane is the taller, leaner giant at 140 to 175 pounds. The Mastiff is the heavier one at 160 to 230 pounds.
Bullmastiff vs Cane Corso
The Bullmastiff is heavier and famously low key indoors. The Corso is leaner, far more driven and wants a job.
Cane Corso vs Rottweiler
The Corso is taller and leggier and covers ground. The Rottweiler is shorter, blockier and built to push weight.
Boxer vs Bullmastiff
A Boxer is a 50 to 80 pound athlete who stays playful for years. A Bullmastiff is a calm 100 to 130 pound guardian.
Boxer vs Rhodesian Ridgeback
The Ridgeback is bigger, quieter and more independent. The Boxer is smaller, louder and far more openly affectionate.
Working and herding breeds
Athletic, clever and demanding. These pairings are usually about how much work the dog expects from you, and how closely it wants to be handled.
German Shepherd vs Doberman
The Doberman is taller and leaner with a short single coat. The Shepherd is heavier boned with a thick double coat.
Alaskan Malamute vs German Shepherd
The Malamute hauls weight and thinks for itself. The Shepherd is lighter, more athletic and far more biddable.
Akita vs Alaskan Malamute
Both are heavy coated spitz breeds. The Akita is a reserved Japanese guardian, the Malamute an Arctic freight dog.
Labrador vs Golden Retriever
The classic family shortlist. Very close on size, with the real differences in coat, grooming load and working style.
What every one of these breeds has in common
Whichever pairing you are weighing, the care that follows is broadly the same. Large and giant breeds grow for longer than small dogs, they carry more load through every joint, and they do best on steady rather than fast growth. Feed to a lean body condition score, keep exercise sensible while the growth plates are still open, and build the daily habits that support joint support early rather than after something changes.
If your shortlist is still open, our growth stages guide explains what the first two years look like across every large breed, and the large breed puppy growth calculator estimates where a given puppy is likely to finish.
Want the simple roadmap in one place? Grab our free Big Dog Growth Guide for the growth window checklist, feeding framework and joint safe exercise limits, all written for large and giant breeds.
This article is for general educational purposes only and is not veterinary advice. It is not intended to diagnose, treat, cure or prevent any disease. Always consult your veterinarian about your dog’s individual health, nutrition and supplement needs. These statements have not been evaluated by the Food and Drug Administration.