Which to choose overall?
Small space and want an alert trainable companion, Papillon; room to spare and want a calm gentle giant with kids, Mastiff.
Mastiff (English Mastiff) or Papillon? On paper they differ most on apartment suitability, 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 Mastiff (English Mastiff) and Papillon and deciding between them. For this pair the decision usually turns on apartment suitability and barking, so those are covered first and in most detail. Anyone choosing from a flat has a clear answer here: Papillon rates 5/5 against 2/5. Breed history is left out; what follows is what you will actually live with.
Between Mastiff (English Mastiff) and Papillon, apartment suitability is what separates them, and Papillon is the lower-effort dog of the two to keep.
Choose Mastiff (English Mastiff) if your walking routine is modest, the dog will be alone during the working day and there are young children at home.
Choose Papillon if you are in a flat or a smaller home, this is your first dog and shedding is a problem in your house.
| Feature | mastiff | papillon | Winner |
|---|---|---|---|
| Size class | giant | small | Equal |
| Weight | 120–250 lbs | 5–10 lbs | Equal |
| Height | 27–32 in | 8–11 in | Equal |
| Lifespan | 9–11 years | 14–16 years | papillon |
| Exercise need | Low (2/5) | Moderate (3/5) | mastiff |
| Grooming need | Low (2/5) | Low (2/5) | Equal |
| Shedding | Moderate (3/5) | Low (2/5) | papillon |
| Energy level | Low (2/5) | High (4/5) | Equal |
| Barking | Very low (1/5) | High (4/5) | mastiff |
| Apartment suitability | Low (2/5) | Very high (5/5) | papillon |
| Good for first-time owners | Low (2/5) | High (4/5) | papillon |
| Tolerates being alone | Moderate (3/5) | Low (2/5) | mastiff |
| Trainability | Moderate (3/5) | Very high (5/5) | papillon |
| Good with kids | Very high (5/5) | Moderate (3/5) | mastiff |
| Good with other dogs | Moderate (3/5) | High (4/5) | papillon |
| Friendly to strangers | Moderate (3/5) | High (4/5) | papillon |
| Cost level | Very high (5/5) | Low (2/5) | papillon |
| Coat | Short, dense | Long, silky single coat | Equal |
| Origin | England | Various | Equal |
| Typical monthly cost | $150–$350 | $80–$150 | Equal |
| Typical first-year cost | $2,200–$4,500 | $1,100–$2,300 | Equal |
This might be the most extreme size mismatch in the whole database: the Mastiff at 120-250 lbs against the Papillon's 5-10 lbs, a Mastiff can weigh twenty-five times more than a Papillon. Height runs 27-32 inches versus 8-11. A Papillon could, in principle, ride comfortably in a Mastiff's food bowl, and daily handling for each dog looks nothing alike.
The Papillon is the more active dog despite its size, exercise need 3/5 against the Mastiff's 2/5, and energy level rates high (4/5) versus the Mastiff's low (2/5). Toy breeds often carry more nervous energy than their giant counterparts, and the Papillon fits that pattern here with quick bursts of activity indoors.
Grooming needs are low for both, 2/5 each, despite very different coats; the Papillon's long silky coat doesn't mat the way some long coats do, and the Mastiff's short coat is naturally easy-care. Shedding tips slightly toward the Papillon (2/5) over the Mastiff (moderate 3/5), an unusual result given the Mastiff's much larger surface area.
The Papillon barks noticeably more, high (4/5) against the Mastiff's very low (1/5), a small dog with a big voice. Apartment suitability flips accordingly: Papillon 5/5, Mastiff a low 2/5. If barking is tolerated in your building, the Papillon is by far the better small-space fit, and it needs far less square footage to feel content.
The Papillon trains extremely well, 5/5, among the highest trainability scores on this site, against the Mastiff's moderate 3/5, and it's also better suited to first-time owners, 4/5 versus 2/5. Its quick-witted temperament tag matches that top trainability number, making obedience and trick work come fairly easily.
The Mastiff rates higher with kids, very high (5/5) against the Papillon's moderate (3/5), a small dog's fragility around boisterous play matters here despite the Papillon's friendly nature. The Papillon pulls ahead with other dogs (4/5 versus 3/5) and with strangers (4/5 versus 3/5), reflecting its outgoing, confident temperament in new situations.
The Papillon lives dramatically longer, 14-16 years against the Mastiff's 9-11, a five-year gap at the top end that's among the widest in this batch. None of the listed conditions overlap: the Mastiff's risks lean toward cancer, heart disease, and joint problems typical of giant breeds, while the Papillon's list includes patellar luxation, dental disease, and collapsing trachea, common toy-breed issues.
Cost level runs opposite the size expectation only in degree, not direction, Mastiff very high (5/5), Papillon low (2/5), and the dollars confirm it: $150-350 monthly for the Mastiff against just $80-150 for the Papillon, with first-year costs of $2,200-4,500 versus $1,100-2,300. The Mastiff can cost more than double to keep across nearly every category.
Mastiff (English Mastiff) weighs 120–250 lbs and lives 9–11 years; Papillon weighs 5–10 lbs and lives 14–16 years. The two diverge most on apartment suitability, barking and cost level and 4 other rated axes. Almost every rated axis separates them at least slightly. The comparison marks an easier option only where one exists. Facts like weight and country of origin are not scored. Both dogs are rated from the same dataset, which is what makes the numbers comparable with each other even though any individual dog sits somewhere inside its breed's range.
About as large as it gets, the Mastiff can weigh 120-250 lbs, the Papillon just 5-10 lbs, a gap of twenty times or more.
The Papillon, by a wide margin, rated high (4/5) against the Mastiff's very low (1/5).
The Papillon, rated 5/5, one of the highest trainability scores on this site, against the Mastiff's moderate 3/5.
The Papillon, 5/5 versus the Mastiff's 2/5, though check your building's tolerance for barking first.
Substantially, the Mastiff runs $150-350 monthly and $2,200-4,500 in year one; the Papillon runs $80-150 monthly and $1,100-2,300 in year one, roughly half or less.
No, their listed conditions don't overlap at all, reflecting how different giant-breed and toy-breed health profiles typically are.
The Papillon, by a wide margin, 14-16 years against the Mastiff's 9-11.
Small space and want an alert trainable companion, Papillon; room to spare and want a calm gentle giant with kids, Mastiff.
Mastiff $150-350 versus Papillon $80-150, the Mastiff costs roughly double or more.
Papillon 3/5, Mastiff 2/5, the tiny dog is actually the more active one.
Papillon 14-16 years, Mastiff 9-11 years, a five-year gap.






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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