Cocker Spaniel vs Shih Tzu: Which Suits Your Home?

The Shih Tzu is the smaller of the two by a wide margin — 9-16 lbs and 8-11 inches, against the Cocker Spaniel's 20-30 lbs and 13-16 inches. The spaniel can weigh close to double a Shih Tzu. If your main constraint is literal size — a small car, limited space, a dog you can easily carry — the Shih Tzu is built for that in a way the spaniel isn't.

The Shih Tzu rates low (2/5) for exercise need against the spaniel's moderate (3/5), and general energy level follows the same pattern. This is a genuinely low-key breed day to day — short walks and indoor play cover most of what a Shih Tzu needs, which suits owners without much time or interest in long outdoor sessions.

Both breeds tie at the top for grooming need (5/5), so don't expect an easy ride from either coat. Where they split is shedding: the Shih Tzu's long, flowing coat is rated very low (1/5) for shedding — it's often marketed as hypoallergenic — while the spaniel sheds moderately (3/5). Less fur on the floor, but comparable time with a brush and comb either way.

The Shih Tzu rates very high (5/5) for apartment suitability, a step above the spaniel's already-good 4/5, and it's an easy call given the size and exercise numbers. Barking ties at moderate (3/5) for both, so noise isn't the deciding factor — square footage and activity level are.

Both breeds rate 4/5 for first-time owners, so neither is a poor beginner choice. Trainability tips toward the spaniel, though — high (4/5) versus the Shih Tzu's moderate (3/5). Shih Tzus were bred as companion dogs first, and that shows up as a slightly more independent streak at training time, even if the size makes any stubbornness easy to physically manage.

The spaniel edges ahead with kids (5/5 vs 4/5) and strangers (4/5 vs 3/5), while both tie with other dogs at 4/5. Given the Shih Tzu's small size, supervision around younger or rougher kids matters regardless of the temperament score — a breed this size is easier to accidentally injure in boisterous play.

The Shih Tzu can live slightly longer at the top end — 10-16 years versus the spaniel's 10-14 — but carries a considerably longer list of health risks: brachycephalic obstructive airway syndrome, eye problems, kidney disease, liver shunts, hypothyroidism, ear infections, patellar luxation, hip dysplasia, allergies, and dental issues, ten conditions against the spaniel's five. The airway syndrome in particular is a flat-faced-breed risk worth discussing with a vet before committing.

Cost rates moderate (3/5) for the spaniel and high (4/5) for the Shih Tzu — a bit counterintuitive given the size difference, but grooming and the longer health watch-list both add up. Monthly: $80-150 versus $120-250. First year: $1,100-2,300 versus $1,500-3,000.