Collie (Rough Collie) vs Shih Tzu: Which Suits Your Home?

Collie (Rough Collie) or Shih Tzu? On paper they differ most on apartment suitability, and on the scales Collie (Rough Collie) is the heavier at 50–75 lbs. Here is how the two compare on everything that shapes an ordinary week.

This is for someone already down to Collie (Rough Collie) and Shih Tzu and deciding between them. For this pair the decision usually turns on apartment suitability and shedding, so those are covered first and in most detail. Anyone choosing from a flat has a clear answer here: Shih Tzu rates 5/5 against 2/5. There is no origin story here — only what changes about your week.

Quick verdict

Between Collie (Rough Collie) and Shih Tzu, apartment suitability is what separates them, and Shih Tzu is the lower-effort dog of the two to keep.

Choose collie if...

Choose Collie (Rough Collie) if you do not want a standing grooming appointment, there are young children at home and you want a dog that picks up training quickly.

Choose shih tzu if...

Choose Shih Tzu if you are in a flat or a smaller home, shedding is a problem in your house and your walking routine is modest.

Head-to-head comparison

Feature	collie	shih tzu	Winner
Size class	large	small	Equal
Weight	50–75 lbs	9–16 lbs	Equal
Height	22–26 in	8–11 in	Equal
Lifespan	11–14 years	10–16 years	shih tzu
Exercise need	Moderate (3/5)	Low (2/5)	shih tzu
Grooming need	High (4/5)	Very high (5/5)	collie
Shedding	High (4/5)	Very low (1/5)	shih tzu
Energy level	Moderate (3/5)	Low (2/5)	Equal
Barking	Moderate (3/5)	Moderate (3/5)	Equal
Apartment suitability	Low (2/5)	Very high (5/5)	shih tzu
Good for first-time owners	High (4/5)	High (4/5)	Equal
Tolerates being alone	Moderate (3/5)	Moderate (3/5)	Equal
Trainability	Very high (5/5)	Moderate (3/5)	collie
Good with kids	Very high (5/5)	High (4/5)	collie
Good with other dogs	High (4/5)	High (4/5)	Equal
Friendly to strangers	High (4/5)	Moderate (3/5)	collie
Cost level	Moderate (3/5)	High (4/5)	collie
Coat	Long double coat	Long, flowing, hypoallergenic	Equal
Origin	Scotland	China	Equal
Typical monthly cost	$100–$200	$120–$250	Equal
Typical first-year cost	$1,500–$2,800	$1,500–$3,000	Equal

Deep dive

Size and build

The Collie outweighs the Shih Tzu by as much as 66 lbs, 50-75 lbs against 9-16 lbs, and stands nearly twice as tall at 22-26 inches versus 8-11 inches. This isn't a comparison of similar dogs at different scales; it's a large herder against a lap-sized companion breed, and that gap shapes nearly every other line in the data.

Energy and exercise

The Shih Tzu needs noticeably less: low (2/5) exercise need and low (2/5) energy level, against the Collie's moderate (3/5) on both counts. A couple of short walks and some indoor play satisfies a Shih Tzu; the Collie wants a real daily outing.

Grooming and shedding

Here the two swap the usual size logic. The Shih Tzu rates very high (5/5) for grooming, the highest tier, despite shedding very low (1/5), because that long flowing coat mats without near-daily brushing. The Collie sheds more hair around the house (high, 4/5) but needs slightly less grooming effort (high, 4/5) by comparison.

Apartment living, noise and time alone

The Shih Tzu scores very high (5/5) for apartment living against the Collie's low (2/5), about as wide a gap as this dataset shows. Barking is tied at moderate (3/5) for both, so noise isn't the differentiator; square footage and the Collie's need to move around is.

Training and owner experience

Both rate high (4/5) for first-time-owner suitability, but the Collie pulls ahead on trainability, very high (5/5) against the Shih Tzu's moderate (3/5). Shih Tzus were bred as companions, not working dogs, so commands tend to be more negotiable with them.

Kids, other dogs and visitors

The Collie leads with kids (very high 5/5 vs high 4/5) and strangers (high 4/5 vs moderate 3/5), while both tie at high (4/5) for getting along with other dogs. Neither is a poor family choice, but the Collie's numbers run a notch friendlier across the board.

Health and lifespan

The Shih Tzu's lifespan range is wider and can run longer, 10-16 years against the Collie's tighter 11-14. Both carry ten-condition lists; hip dysplasia and hypothyroidism overlap, but the Shih Tzu's list leans toward brachycephalic issues like airway syndrome that the Collie doesn't share, a direct consequence of its flatter face.

Cost to keep

The Shih Tzu actually costs more to keep despite being far smaller: cost level rates high (4/5) versus the Collie's moderate (3/5), with monthly costs of $120-250 against $100-200 and first-year costs of $1,500-3,000 against $1,500-2,800. That very-high grooming need adds up in professional grooming bills.

Collie (Rough Collie) vs Shih Tzu at a glance

Collie (Rough Collie) weighs 50–75 lbs and lives 11–14 years; Shih Tzu weighs 9–16 lbs and lives 10–16 years. The two diverge most on apartment suitability, shedding and trainability. They are level on tolerates being alone, barking and good with other dogs, 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

Does the smaller Shih Tzu cost less to own?

No, surprisingly it costs more. Cost level rates high (4/5) for the Shih Tzu against moderate (3/5) for the Collie, and monthly costs run $120-250 versus $100-200, driven by that very-high (5/5) grooming requirement.

Which sheds less?

The Shih Tzu, by a wide margin: very low (1/5) shedding versus the Collie's high (4/5), even though the Shih Tzu's coat is longer.

Is the Shih Tzu easier to train?

No, the Collie is, very high (5/5) trainability against the Shih Tzu's moderate (3/5). Both are rated equally suitable for first-time owners at high (4/5).

Which fits an apartment better?

The Shih Tzu, decisively: very high (5/5) apartment suitability against the Collie's low (2/5). Size and exercise need both favor the Shih Tzu here.

How much exercise does the Shih Tzu need?

Low (2/5): a couple of short walks a day plus some play covers it, versus the Collie's moderate (3/5) need for a real daily walk.

Do they share health risks?

Some: hip dysplasia and hypothyroidism appear on both lists. The Shih Tzu's flatter face also brings brachycephalic airway issues the Collie doesn't face.

Which lives longer?

The Shih Tzu can, with a range up to 16 years against the Collie's 14-year ceiling, though both breeds' lower bounds sit close (10-11 years).

Quick answers

View more answers

Living

Which dog fits a small apartment better?

The Shih Tzu without much competition: very high (5/5) apartment suitability, low exercise need, and it's a fraction of the Collie's size.

Costs

What's the monthly cost gap?

The Shih Tzu actually runs higher, $120-250 versus the Collie's $100-200, mostly from grooming.

Living

Which needs more exercise?

The Collie, moderate (3/5) against the Shih Tzu's low (2/5), though neither is a high-exercise breed.

Health

Which breed can live longer?

The Shih Tzu, with a range that stretches to 16 years versus the Collie's 14-year cap.

Related DogBreedCompass guides

Collie (Rough Collie) breed guide – Readers comparing the two usually want the full profile of Collie (Rough Collie) before deciding.
Shih Tzu breed guide – The same for Shih Tzu, so the comparison can be checked against the detail.
Collie (Rough Collie) vs Golden Retriever – Golden Retriever is the closest breed to Collie (Rough Collie) on the measured axes, so it is the natural next comparison.
Shih Tzu vs Bichon Frise – Bichon Frise sits closest to Shih Tzu, which makes it the alternative worth ruling out.
What Collie (Rough Collie) costs to keep – Anyone weighing these two is usually also pricing them, and the cost pages carry city-level figures.
Shih Tzu health problems – The health pages set out what each breed is actually screened for.

Related guides

Comparison

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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