Greater Swiss Mountain Dog vs Smooth Collie

Choosing between Greater Swiss Mountain Dog and Smooth Collie? The most obvious difference is size — Greater Swiss Mountain Dog is the bigger dog, while Smooth Collie is more compact — but temperament, grooming and exercise needs matter just as much. Below we break down exactly how the two breeds compare on the things that shape daily life with a dog, so you can see which one is the better fit for your home, family and routine.

Greater Swiss Mountain Dog vs Smooth Collie: full comparison

TraitGreater Swiss Mountain DogSmooth Collie
SizeGiantLarge
Energy levelMediumMedium
TrainabilityHighHigh
FriendlinessVery HighVery High
Good with childrenVery HighVery High
Grooming needsMediumMedium
SheddingHighHigh
BarkingMediumMedium
ProtectivenessMediumMedium
AdaptabilityMediumHigh
Typical lifespan9 years13 years
HypoallergenicNoNo

Key differences at a glance

Size and living space

The Greater Swiss Mountain Dog is one of the true giant breeds that needs a spacious home — its size alone means more room, a bigger car and higher food costs. By comparison, the Smooth Collie is a large and powerful breed that does best in a larger home with room to stretch out, ideally with access to a yard. If space, transport or budget are tight, the smaller of the two is the more practical choice.

Exercise and energy needs

The Greater Swiss Mountain Dog wants a decent walk or two each day and some playtime. The Smooth Collie wants a decent walk or two each day and some playtime. Their exercise needs are broadly the same, so this is unlikely to be a deciding factor.

Grooming and shedding

The Greater Swiss Mountain Dog needs regular brushing to stay in good condition and sheds quite a lot — expect fur on furniture and clothes. The Smooth Collie needs regular brushing to stay in good condition and sheds quite a lot — expect fur on furniture and clothes. Grooming upkeep is similar for both.

Temperament, training and family life

The Greater Swiss Mountain Dog learns quickly and enjoys the training process, barks a fair amount, usually for a reason and is renowned for its patience and gentleness with children. The Smooth Collie learns quickly and enjoys the training process, barks a fair amount, usually for a reason and is renowned for its patience and gentleness with children. On guarding instinct, Greater Swiss Mountain Dog announces visitors but stops short of guarding, whereas Smooth Collie announces visitors but stops short of guarding.

Which is better for…

Which should you choose?

Choose the Greater Swiss Mountain Dog if you want a bigger, more substantial dog.

Choose the Smooth Collie if you want a longer-lived breed, you want a more adaptable dog, or you want a smaller, more apartment-friendly dog.

Which dog do you look like?

Take one photo and an AI model tells you which of our 321 breeds you most resemble, and which features gave it away. Free, no account, and your photo is never stored. It is a game rather than advice — but every match links straight into that breed's real guide.

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Frequently asked questions

Is the Greater Swiss Mountain Dog or the Smooth Collie better for families with children?
Both the Greater Swiss Mountain Dog and the Smooth Collie are considered good with children when properly socialized and supervised.
Which sheds more, the Greater Swiss Mountain Dog or the Smooth Collie?
The Greater Swiss Mountain Dog and Smooth Collie shed a similar amount (high).
Which is easier to train, the Greater Swiss Mountain Dog or the Smooth Collie?
Both breeds have comparable trainability. Consistency and positive reinforcement work well for each.
Is Greater Swiss Mountain Dog or Smooth Collie bigger?
Greater Swiss Mountain Dog is the larger breed; Smooth Collie is smaller and more compact.
Which barks more, Greater Swiss Mountain Dog or Smooth Collie?
Both bark a similar amount (medium).
Which is better for apartment living, Greater Swiss Mountain Dog or Smooth Collie?
For apartment or apartment living, Smooth Collie has the edge, thanks to its size, quieter nature and more manageable energy.

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