Boston Terrier vs French Bulldog: Differences, Similarities & Which to Choose

At a Glance

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The Quick Answer

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Why Do They Look Alike? (Yes, They’re Related)

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The reason people constantly mix them up is simple: they share ancestry. Both descend from the English Bulldog of the 19th century, which was crossed with terriers to create smaller companion breeds. The Boston Terrier was developed in — you guessed it — Boston, while the French Bulldog was refined in France after English lace workers brought their toy bulldogs across the Channel.

The key visual differences: Frenchies have trademark “bat ears” (round and upright), while Boston Terriers have naturally pointed ears. Frenchies are stockier with more wrinkles. Bostons have a sleeker build, longer legs, and the classic “tuxedo” coat pattern. Once you know to look at the ears, you’ll never confuse them again.

Where They Differ

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Health: This Is the Deciding Factor

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French Bulldogs are a medical minefield — BOAS affects nearly 100% to some degree, spine problems are common, allergies and skin issues are constant, and they can’t handle heat. Bostons are also brachycephalic but much less severely — they breathe better, handle heat better, and have fewer overall health problems. The Boston’s longer snout makes a real difference.

If you want a flat-faced dog with fewer vet bills, get the Boston.

Personality

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Frenchies are Velcro dogs who want to be touching you at all times. They’re clowns but on their own terms — trainability is limited by stubbornness. Bostons are more willing to please, more playful with strangers, and generally easier to live with. Boston energy is slightly higher — they’ll keep up on hikes where a Frenchie would need to be carried.

Cost

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This isn’t close. Frenchies cost $2,000–$8,000 to buy and $1,000–$3,000/year in vet care. Natural mating is nearly impossible — almost all are C-sections and artificial insemination. Bostons cost $800–$2,000 and have more typical veterinary costs. Over a lifetime, a Frenchie costs roughly double.

Side by Side

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They share a bulldog-and-terrier past and a tuxedo reputation. The decision is health, price, and how much dog you want on a walk.

Size. French Bulldogs are 16–28 pounds and stocky. Boston Terriers are 12–25 pounds, longer in the leg, less wrinkle. Both are apartment-scaled. A Frenchie feels heavier because the body is a rectangle. A Boston feels lighter because it can still trot.

Lifespan. Frenchies are listed at 10–12 years. Bostons at 11–13. The gap is modest on paper and larger in vet visits. Flat faces shorten the easy years for both. The Boston’s longer muzzle is the reason the Boston has more of them.

Shedding. Both are short-coated. Frenchies are low to moderate. Bostons are low. This is not a hairy-house matchup. It is a wrinkle-and-airway matchup. If you came here from Pug vs French Bulldog, the Pug is the one that sheds more than the haircut suggests.

Energy. Frenchies are low to moderate and famous for quitting a walk and needing a carry. Bostons are moderate. They will do a reasonable hike in cool weather and still be clowns indoors. Neither is a running partner. Heat is the limiter, and it hits the Frenchie first.

Trainability. Both are companion dogs with a stubborn streak. Bostons are more willing. Frenchies are more “I’ll consider it from the couch.” Food helps both. A Boston is the one you can actually take through a training class without the class becoming a nap.

Health risks. French Bulldogs are a breathing, spine, and skin project. BOAS — the flat-face airway syndrome — affects nearly all of them to some degree. Back problems, allergies, and heat that can turn a short walk into an emergency are the rest of the brochure. Bostons are brachycephalic too, with a milder version: they breathe better, handle warmth better, and still need eye and knee awareness. The Boston guide cites grading data that puts far more Bostons in the clear-airway group than Frenchies. “Healthier flat face” still means flat face. It does not mean a Lab.

Cost. Frenchies run $2,000–$8,000 to buy because almost every litter is surgical: artificial insemination and a C-section. Annual vet care on the breed guide is $1,000–$3,000. Bostons run $800–$2,000 and have more ordinary bills. Over a life, the Frenchie costs roughly double. That sentence is the comparison.

Living With Each

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Apartment. Both can be excellent apartment dogs. They are small, they are not screamers, and they do not need a yard. The Frenchie fails the apartment when the apartment runs warm, when you travel by air, or when the dog is alone all day and already prone to panic. The Boston fails it when you wanted silence — they are more vocal than a Frenchie — or when you planned noon runs in August. Best Apartment Dogs and Small Dogs That Don’t Bark both keep these two on the shortlist with those exact limits.

Kids. A Boston is sturdy enough for respectful kids and playful enough to join them. A Frenchie can be good with children and is heavier, more stubborn, and easier to overheat in a summer backyard. Neither should be a toddler’s wrestling partner. Wrinkles, eyes, and backs do not enjoy being sat on. Best Family Dogs is honest that a Frenchie is a medical project that happens to be charming.

First-time owner. The Boston is the sane first flat-faced dog, if you accept the airway and the price of a real breeder. The Frenchie is a bad first dog if the purchase price is already a stretch, because the purchase price is the cheap part. A first-time owner who wants an easy companion and a normal vet bill should not be choosing between two brachycephalic breeds at all. Read the first-time list and notice who is missing.

Active household. A Boston can join moderate hikes, training, and a house that goes places, in cool weather, with water and a quit plan. A Frenchie joins the house and then asks to be carried. If “active” means running, heat, or travel, neither fits, and the Frenchie fits less. If “active” means you are home, you walk in the morning and evening, and you want a clown on the couch afterward, both work, and the Boston works with fewer emergency vet trips.

When neither fits. You run in summer. You fly with your dog. You need a low vet bill. You wanted a Frenchie because they are fashionable and you have not priced BOAS surgery. You wanted a Boston as a “healthy Frenchie” and then planned the same hot-weather life. Get a dog with a muzzle.

What Ownership Actually Costs

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This is the section that should decide it.

BOAS surgery, when a Frenchie needs it, is thousands of dollars. Skin and spine add their own years. A Boston can have eye and knee bills and still not live in that range. Pet insurance before the first diagnosis is part of buying either dog. It is a larger part of buying the Frenchie. A Frenchie under $2,000 is usually a Frenchie whose seller skipped the health work, and the discount disappears at the first airway consult.

Full guides: French Bulldog and Boston Terrier. The other flat-face argument is Pug vs French Bulldog.

Which Should You Get?

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Get a French Bulldog if: you want the lowest possible energy, you’re obsessed with the bat-ear look, and you can afford the purchase price AND the ongoing vet bills. You work from home and can manage their health daily.

Get a Boston Terrier if: you want an apartment dog who’s healthier, more trainable, and more affordable. You’d like a dog who can join you on moderate hikes and won’t bankrupt you with vet bills.

Full guides: French Bulldog | Boston Terrier

Frequently Asked Questions

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Sources

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• AKC French Bulldog Breed Standard | AKC Boston Terrier Breed Standard
• Tomlinson et al. (2024), PLOS ONE — BOAS grading data
• McMillan et al. (2024), Scientific Reports — breed lifespan data
• Puppy pricing based on 2025–2026 US breeder market data