Living
Which breed suits most households better?
It depends on space and budget, the Mastiff is calmer and better with kids, but needs far more room and money than the Pit Bull.
American Pit Bull Terrier vs Mastiff (English Mastiff): Which Suits Your Home?
American Pit Bull Terrier or Mastiff (English Mastiff)? On paper they differ most on cost level, and on the scales Mastiff (English Mastiff) is the heavier at 120–250 lbs. Here is how the two compare on everything that shapes an ordinary week.
This is for someone already down to American Pit Bull Terrier and Mastiff (English Mastiff) and deciding between them. For this pair the decision usually turns on cost level and exercise need, so those are covered first and in most detail. Both rate 2/5 for flats, so housing does not settle this one. There is no origin story here — only what changes about your week.
Quick verdict
Between American Pit Bull Terrier and Mastiff (English Mastiff), cost level is what separates them, and Mastiff (English Mastiff) is the lower-effort dog of the two to keep.
Choose american pit bull terrier if...
Choose American Pit Bull Terrier if you do not want a standing grooming appointment, you want a dog that picks up training quickly and a smaller dog suits your car, your home or your back.
Choose mastiff if...
Choose Mastiff (English Mastiff) if your walking routine is modest, there are young children at home and you already have another dog.
Head-to-head comparison
| Feature | american pit bull terrier | mastiff | Winner |
|---|---|---|---|
| Size class | large | giant | Equal |
| Weight | 30–65 lbs | 120–250 lbs | Equal |
| Height | 17–21 in | 27–32 in | Equal |
| Lifespan | 12–14 years | 9–11 years | american pit bull terrier |
| Exercise need | High (4/5) | Low (2/5) | mastiff |
| Grooming need | Very low (1/5) | Low (2/5) | american pit bull terrier |
| Shedding | Moderate (3/5) | Moderate (3/5) | Equal |
| Energy level | High (4/5) | Low (2/5) | Equal |
| Barking | Low (2/5) | Very low (1/5) | mastiff |
| Apartment suitability | Low (2/5) | Low (2/5) | Equal |
| Good for first-time owners | Low (2/5) | Low (2/5) | Equal |
| Tolerates being alone | Moderate (3/5) | Moderate (3/5) | Equal |
| Trainability | High (4/5) | Moderate (3/5) | american pit bull terrier |
| Good with kids | High (4/5) | Very high (5/5) | mastiff |
| Good with other dogs | Low (2/5) | Moderate (3/5) | mastiff |
| Friendly to strangers | Moderate (3/5) | Moderate (3/5) | Equal |
| Cost level | Low (2/5) | Very high (5/5) | american pit bull terrier |
| Coat | Short, glossy | Short, dense | Equal |
| Origin | United States | England | Equal |
| Typical monthly cost | $80–$150 | $150–$350 | Equal |
| Typical first-year cost | $1,200–$2,200 | $2,200–$4,500 | Equal |
Deep dive
Size and build
There's no subtlety in this size gap, the English Mastiff can weigh up to 250 lbs and stand 32 inches at the shoulder, while the Pit Bull maxes out around 65 lbs and 21 inches. A Mastiff at its largest could outweigh the Pit Bull by close to four times over. Floor space, doorways, and car trunks all need reconsidering with a dog this size.
Energy and exercise
The Mastiff is a genuinely low-key dog, rated low (2/5) for exercise need against the Pit Bull's high (4/5). Giant breeds like the Mastiff tend to prefer short walks and long naps over sustained activity, partly because their joints simply can't take the wear that a smaller, more athletic breed's can.
Grooming and shedding
Both breeds are easy on the grooming front, very low (1/5) for the Pit Bull, low (2/5) for the Mastiff, and shedding ties at moderate (3/5) for both. This is one of the few categories where the size gap between these two doesn't translate into extra work.
Apartment living, noise and time alone
Both breeds tie at low (2/5) for apartment suitability, which for the Mastiff is really about square footage rather than temperament, a calm dog that simply takes up a lot of room. Barking favors the Mastiff, rated very low (1/5) against the Pit Bull's low (2/5), making it the quieter of the two despite its imposing size.
Training and owner experience
The Pit Bull trains slightly more reliably, rated high (4/5) against the Mastiff's moderate (3/5), though both share the same low (2/5) score for first-time owners. A Mastiff's size means training stakes are high even for a naturally calm dog, an untrained 200 lb animal is unmanageable regardless of temperament.
Kids, other dogs and visitors
The Mastiff rates higher with both kids and other dogs, very high (5/5) and moderate (3/5), against the Pit Bull's high (4/5) and low (2/5). Strangers are treated the same by both, moderate (3/5), consistent with the Mastiff's known reputation as a gentle giant that's protective without being aggressive.
Health and lifespan
The Pit Bull's 12-14 year lifespan far outpaces the Mastiff's 9-11, another instance of the size-for-longevity tradeoff giant breeds carry. Both share hip dysplasia, elbow dysplasia, cancer, bloat/GDV risk, and arthritis, a substantial overlap. The Mastiff's list additionally includes dilated cardiomyopathy and bone cancer, conditions more common in dogs carrying this much mass on a frame.
Cost to keep
The Mastiff is the most expensive breed to keep in this comparison, cost level very high (5/5) against the Pit Bull's low (2/5), monthly spend of $150-350 versus $80-150, and a first-year total that can reach $4,500 against the Pit Bull's $2,200 ceiling. Feeding, medicating, and treating a dog this size costs proportionally more at every step.
American Pit Bull Terrier vs Mastiff (English Mastiff) at a glance
American Pit Bull Terrier weighs 30–65 lbs and lives 12–14 years; Mastiff (English Mastiff) weighs 120–250 lbs and lives 9–11 years. The two diverge most on cost level, exercise need and energy level. They are level on tolerates being alone, apartment suitability and good for first-time owners, so those cannot decide it. Where the table declares a winner it means less work for the owner, nothing more; descriptive rows are left as ties on purpose. The value here is in the differences between the two columns; treat any single score as approximate.
Frequently asked questions
How much bigger is a Mastiff than a Pit Bull?
Enormously, a Mastiff can weigh up to 250 lbs, nearly four times the Pit Bull's upper weight limit of 65 lbs. It's one of the largest size gaps in any comparison on this site.
Which lives longer?
The Pit Bull, clearly, 12-14 years against the Mastiff's 9-11, a gap typical of the tradeoff giant breeds make for their size.
Is a Mastiff good with kids?
Yes, rated very high (5/5), actually ahead of the Pit Bull's high (4/5) score. Mastiffs have a well-earned reputation for gentleness despite their size.
Which is more expensive to keep?
The Mastiff, by a wide margin, rated very high (5/5) on cost against the Pit Bull's low (2/5), with a monthly bill that can run more than double.
Which needs more exercise?
The Pit Bull, rated high (4/5) against the Mastiff's low (2/5), despite its size, a Mastiff is a relatively low-energy dog that prefers short walks over long ones.
Do they share health risks?
Substantially, hip dysplasia, elbow dysplasia, cancer, bloat/GDV, and arthritis all appear on both breeds' lists, making joint and cardiac monitoring important for either dog.
Which is quieter?
The Mastiff, rated very low (1/5) for barking against the Pit Bull's low (2/5), a surprisingly quiet dog given its imposing size.
Quick answers
View more answersCosts
How much more does a Mastiff cost?
Roughly double at minimum, $150-350 monthly against $80-150 for the Pit Bull, and a first-year cost that can run over $2,000 higher.
Behavior
Which needs more exercise?
The Pit Bull, rated high (4/5) against the Mastiff's low (2/5), a genuine surprise given the size difference, but Mastiffs are naturally low-energy.
Health
Which lives longer?
The Pit Bull, at 12-14 years against the Mastiff's 9-11, a meaningful gap tied to the Mastiff's giant-breed size.
Related DogBreedCompass guides
- American Pit Bull Terrier breed guide – Readers comparing the two usually want the full profile of American Pit Bull Terrier before deciding.
- Mastiff (English Mastiff) breed guide – The same for Mastiff (English Mastiff), so the comparison can be checked against the detail.
- American Pit Bull Terrier vs American Staffordshire Terrier – American Staffordshire Terrier is the closest breed to American Pit Bull Terrier on the measured axes, so it is the natural next comparison.
- Mastiff (English Mastiff) vs Saint Bernard – Saint Bernard sits closest to Mastiff (English Mastiff), which makes it the alternative worth ruling out.
- What American Pit Bull Terrier costs to keep – Anyone weighing these two is usually also pricing them, and the cost pages carry city-level figures.
- Mastiff (English Mastiff) health problems – The health pages set out what each breed is actually screened for.
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Important reminder
Health information here is general and is not veterinary advice. If your dog shows pain, sudden behaviour change, or worsening symptoms, consult a licensed veterinarian.
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