PuppyBase

Brittany vs Neapolitan Mastiff

Side-by-side comparison across all 14 AKC trait ratings, with a clear verdict on which breed fits which kind of household.

Perfect Puppy Quiz · 5 questions · 90 seconds

Not sure which breed fits your life?

Answer five questions about your home, your schedule, and your tolerance for shedding. We’ll match you to your top three breeds from over 200.

The bottom line

Brittany vs Neapolitan Mastiff

You’re probably not comparing a Brittany to a Neapolitan Mastiff while sipping coffee and scrolling casually. You’re deep in it. Maybe you want a dog that matches your active life but also offers protection, or perhaps you’re torn between heart and practicality. These breeds sit at opposite ends of the dog world, and the reason people even pit them against each other is deeper than size. it’s about what kind of companion you actually need. The Brittany is a live wire with a nose for adventure. If you’re out hiking before sunrise or training for trail races, this dog will match your pace and then beg for more. They’re bright, easy to train, and bond tightly with families, but they demand movement and mental work. Leave them alone too long and they’ll redecorate your couch out of boredom. Now picture the Neapolitan Mastiff: a mountain of folded skin and silent intensity. This dog isn’t built for speed or fetch. It’s built for presence. Calm, deeply loyal, and naturally suspicious of strangers, it’s less "let’s go!" and more "I’ll guard the kingdom." But that grandeur comes with trade-offs. massive drool, serious health risks like bloat, and a lifespan heartbreakingly short at 7 to 9 years. Here’s the real talk: the Brittany thrives where life moves. The Mastiff thrives where life stands still. One needs a partner in motion. The other needs a stable, experienced hand and a yard like a small farm. Choose the Brittany if you want a dog that feels like part of your active identity. Choose the Mastiff only if you’re ready to commit to a high-maintenance giant. emotionally, physically, and financially. and you actually want that kind of weight in your life.

Brittany
Neapolitan Mastiff
17.5–20.5 in
Height
24–31 in
30–40 lb
Weight
110–150 lb
12–14 yr
Lifespan
7–9 yr
$1.2–3.0k
Puppy price
$2.0–5.0k
#26
AKC popularity
#102

Trait-by-trait

Higher bar = more of that trait. Shedding, barking, drooling, grooming flipped for readability.
Affectionate w/ Family
Good with Young Children
Good with Other Dogs
Shedding Level
Coat Grooming
Drooling Level
Good with Strangers
Playfulness
Watchdog / Protective
Adaptability
Trainability
Energy Level
Barking Level
Mental Stimulation Needs
AffectionGood w/ KidsGood w/ DogsShedding LevelGroomingDrooling LevelGood w/ StrangersPlayfulnessProtectiveAdaptabilityTrainabilityEnergy LevelBarking LevelMental Stim.
Brittany Neapolitan Mastiff
Overlay

Where they diverge

Drooling Level
Brittany drools less (4-point difference)
Brittany
Energy Level
Brittany has more energy (3-point difference)
Brittany
Playfulness
Brittany is more playful (2-point difference)
Brittany
Watchdog / Protective
Neapolitan Mastiff is more protective (2-point difference)
Neapolitan
Trainability
Brittany is easier to train (2-point difference)
Brittany
The verdict

Choose the Brittany if…

  • Active families
  • Hunters
  • Runners and hikers
  • You value energy levelBrittany scores noticeably higher.

Choose the Neapolitan Mastiff if…

  • Experienced large-breed owners
  • Those wanting an imposing guard dog
  • Homeowners with space
  • You value drooling levelNeapolitan Mastiff scores higher here.
Brittany Owner’s Guide
Everything you need before bringing your Brittany home.
Breed variants, breeder red flags, and what to ask
First-week checklist and daily schedules by age
Training timeline from 8 weeks to adulthood
Health screenings, emergency card, and feeding portions
Grooming schedule, first-year costs, and what nobody tells you
Get Your Guide
Neapolitan Mastiff Owner’s Guide
Everything you need before bringing your Neapolitan Mastiff home.
Breed variants, breeder red flags, and what to ask
First-week checklist and daily schedules by age
Training timeline from 8 weeks to adulthood
Health screenings, emergency card, and feeding portions
Grooming schedule, first-year costs, and what nobody tells you
Get Your Guide

Other comparisons people run