Life expectancy favors the Havanese: 13–15 years versus the Cavalier King Charles Spaniel's 9–14 years. For many families, those extra years together are a compelling reason to lean toward the Havanese.

If you hate vacuuming, this matters. The Cavalier King Charles Spaniel's 3/5 shedding level means daily fur management is part of life.

Cavalier King Charles Spaniels from the Toy group carry a affectionate, gentle and graceful personality, shaped by their heritage as toy dogs. Havaneses, belonging to the Toy group, are cheerful, intelligent and outgoing — reflecting their own distinct breeding history.

Purchase prices are in the same ballpark: $1,200–$3,500 for a Cavalier King Charles Spaniel and $1,000–$2,500 for a Havanese. The initial investment won't differ dramatically between these two breeds.

The Cavalier King Charles Spaniel needs slightly more exercise (3/5) than the Havanese (2/5), but neither breed is at an extreme. Both have moderate to moderate energy levels, so the difference in your daily routine will be modest — perhaps an extra 15-20 minutes of activity for the Cavalier King Charles Spaniel.

Both breeds score 4/5 for trainability — you'll have a similar experience training either one. Both are cooperative, eager learners.

The Cavalier King Charles Spaniel (5–8 kg (11–18 lbs), 30–33 cm (12–13 in)) and Havanese (3–6 kg (7–13 lbs), 22–29 cm (9–11 in)) are very close in size. You won't need different-sized equipment, and food costs will be comparable.

Both breeds score 5/5 with children, making them equally suitable for families. Either breed would make an excellent family dog.