Last Updated: Jun 18, 2022
Quick Links: Table of Contents
- Great Dane Versus Sealyham Terrier: Introduction
- Great Dane versus Sealyham Terrier: Overview
- Great Dane versus Sealyham Terrier: Comparison Table
- The Most Remarkable Differences Between the Great Dane and the Sealyham Terrier
- The Similarities Between the Great Dane and the Sealyham Terrier
- Size Comparison of the Great Dane versus Sealyham Terrier
- Lifespan of Great Dane versus Sealyham Terrier
- Temperament of the Sealyham Terrier Versus the Great Dane
- The Intelligence of the Great Dane versus the Intelligence of the Sealyham Terrier
- The Popularity of Great Dane versus Popularity of Sealyham Terrier
- Health Problems of Great Dane versus Health Problems of Sealyham Terrier
- Tolerates Being Alone: Great Dane versus Sealyham Terrier
- Do Great Danes shed more than Sealyham Terriers?
- Which is Easier to Groom, the Great Dane or the Sealyham Terrier?
- Which Dog Breed is more Dog-Friendly, the Great Dane or the Sealyham Terrier?
- Are Great Danes good family dogs? What about Sealyham Terriers?
- Is the Great Dane Easier to Train than the Sealyham Terrier?
- Which one drools more, the Great Dane or the Sealyham Terrier
- How Kid-friendly are Great Danes and Sealyham Terriers?
- Does the Great Dane Have a Higher Prey Drive than the Sealyham Terrier?
- Do Great Danes Bark and Howl? What about Sealyham Terriers?
- Can Great Danes Tolerate Cold Weather? And can Sealyham Terriers Tolerate Cold Weather?
- Wanderlust Potential: Great Dane vs. Sealyham Terrier
- Can Great Danes Tolerate Hot Weather? Can Sealyham Terriers Tolerate Hot Weather?
- Great Dane Versus Other Dog Breeds
- Conclusion: Great Dane versus Sealyham Terrier. Which One is a Better Pet?
Great Dane Versus Sealyham Terrier: Introduction
Are you thinking of getting a new pet dog, and you have narrowed down your choices to the Great Dane and the Sealyham Terrier? Well, you have come to the right place. Because in this article, we will provide you with a detailed comparison of these two dog breeds to help you decide which of the Great Dane and the Sealyham Terrier better suits you.
We will provide you a detailed discussion and comparison of dog attributes such as intelligence, price, general health, friendliness, etc, for both the Great Dane and the Sealyham Terrier.
Furthermore, we will let you know which one of the Great Dane and the Sealyham Terrier is better suited for new dog owners, for owners with kids, for owners that live in apartments, for owners with dog allergies, etc.
Importantly, we did some analysis and calculation and we obtained a number that we call the Better-Pet Score™ for both the Great Dane and for the Sealyham Terrier. The dog breed with the higher Better-Pet score is the `better` pet. We hope that these Better-Pet Scores will provide you with more insight into deciding which pet to get between the Great Dane and the Sealyham Terrier.
Our only goal here is to help you make a well-thought-out decision on your next long-term companion, be it the Great Dane or the Sealyham Terrier.

Great Dane versus Sealyham Terrier: Overview
A very important difference between the Great Dane and the Sealyham Terrier is the size difference between the two dog breeds. The Great Dane is a giant-sized dog while the Sealyham Terrier is a small-sized dog.
Furthermore, the Great Dane belongs to the Working Dogs group. Working Dogs were developed to assist humans in some capacity – including pulling sleds and carts, guarding flocks, guarding homes, and protecting their families. Breeds in the Working Group are known for their imposing stature, strength, intelligence, and fearless. Because of their size and strength, working dogs require a structured home life and firm, fair, consistent training by someone who can provide leadership without resorting to anger or physical force.
On the other hand, the Sealyham Terrier belongs to the Terrier Dogs group. Terrier Dogs were originally bred to go underground to hunt rodents and other small wild animals (vermin). Terriers come in a wide range of sizes and shapes, but all terriers are energetic, highly intelligent, and territorial. Terries also have the tendency to escape. They require a securely fenced yard.
Great Dane versus Sealyham Terrier: Comparison Table
The table below compares the Great Dane to the Sealyham Terrier based on different important factors such as Price, Health, Kid-friendliness, etc.
When a dog breed scores higher for a factor than the other dog breed, the box of the breed that scores higher is shaded green and the box of the breed that scores lower is shaded red. When there is no difference between the breeds for a particular factor then the box is shaded gray for both pets. Also, when the factor is not important in picking a pet, or when the factor cannot be compared between two pets, the box for the factor is shaded gray for both pets
Most of the factors in the table for each dog breed are ranked on a scale of 1 to 5. “1” means “worst”, and “5” means “best”.
However, some factors such as “Price”, “Average Lifespan”, etc. cannot be on a scale of 1 to 5, so they are not on a scale of 1 to 5 in the comparison table.
Later in this article, we will further explain each factor as it applies to the Great Dane and the Sealyham Terrier
| Factor | Great Dane | Sealyham Terrier |
|---|---|---|
| Adapts Well To Apartment Living | 1/5 | 4/5 |
| Good For Novice Owners | 1/5 | 4/5 |
| Tolerates Being Alone | 1/5 | 2/5 |
| Weight | 100 to 200 pounds | 22 to 24 pounds |
| Tolerates Cold Weather | 2/5 | 4/5 |
| Potential NOT to Gain Weight | 4/5 | 3/5 |
| Does NOT chew on things | 4/5 | 4/5 |
| Height | 26 to 34 inches tall at the shoulder | Up to 10 inches tall at the shoulder |
| Tolerates Hot Weather | 3/5 | 3/5 |
| Intelligence | 3/5 | 4/5 |
| Low Prey Drive | 3/5 | 4/5 |
| Tendency NOT to Wander | 3/5 | 3/5 |
| Does NOT Drool | 2/5 | 3/5 |
| General Health | 4/5 | 5/5 |
| Does NOT Bark or Howl | 2/5 | 2/5 |
| Easygoing | 1/5 | 2/5 |
| Affectionate With Family | 5/5 | 4/5 |
| Kid-Friendly | 5/5 | 4/5 |
| Dog Friendly | 5/5 | 4/5 |
| Friendly Toward Strangers | 5/5 | 3/5 |
| Does NOT Shed | 1/5 | 2/5 |
| Easy To Groom | 5/5 | 1/5 |
| Easy To Train | 5/5 | 3/5 |
| NOT Rambunctious | 1/5 | 2/5 |
| Calmness/ Low Vigor | 1/5 | 4/5 |
| Minimal Exercise Needs | 1/5 | 2/5 |
| Potential For Playfulness | 5/5 | 4/5 |
| Life Span | 7 to 10 years | 12 to 14 years |
| Average Lifespan | 8.5 years | 13.0 years |
| Average Price | $1560 | No Data |
| Price Range | $1000 – $2000 | No Data |
| Temperament Score | 81.5 percent | 100.0 percent |
| Common Health Problems and Recommended Health Tests | ||
| Popularity out of 200 Dog Breeds | 15 | 155 |
| Intelligence Rank (out of 130 Dog Breeds) | 48 | 56 |
Next, we added the scores of the factors that can be added together for the Great Dane in the table (that is, `Ease of Grooming` score + `General Health` score + `Calmness` score + …etc) and we compared it to the corresponding total score for the Sealyham Terrier. We call these total scores the Better-Pet Scores, as we mentioned earlier. We called this score the Better-Pet score because the better dog breed will have a higher score. This is because the pet will the higher score will have minimal needs and be easier to have as a pet.
The Better-Pet score for the Great Dane is 73 out of 125 while the Better-Pet score for the Sealyham Terrier is 80 out of 125.
Despite the higher Better-Pet score of the Sealyham Terrier, we still believe that the Great Dane is a better pet than the Sealyham Terrier.
This is because Great Danes are much cuter but you cannot put a score on cuteness. If you could put a score on cuteness, then the Great Dane will come out on top.
Also, we are biased in favor of the Great Dane :-). We are for the Great Dane. So get a Great Dane!

The Most Remarkable Differences Between the Great Dane and the Sealyham Terrier
Below is a list of where the Great Dane and the Sealyham Terrier are most different:
The Similarities Between the Great Dane and the Sealyham Terrier
The Great Dane and the Sealyham Terrier are very similar in certain aspects. Below is the list of where the Great Dane and the Sealyham Terrier are most similar:
Size Comparison of the Great Dane versus Sealyham Terrier
Now, let us discuss the difference in size between the Great Dane and the Sealyham Terrier.
The Great Dane weighs 100 to 200 pounds when fully grown. The Great Dane is 26 to 34 inches tall at the shoulder when fully grown.
On the other hand, the Sealyham Terrier weighs 22 to 24 pounds when fully grown. The Sealyham Terrier is Up to 10 inches tall at the shoulder when fully grown.

Lifespan of Great Dane versus Sealyham Terrier
The lifespan of the Great Dane is between 7 to 10 years. The average lifespan of the Great Dane is 8.5 years.
The lifespan of the Sealyham Terrier is between 12 to 14 years. The average lifespan of the Sealyham Terrier is 13.0 years.
The Sealyham Terrier live longer than the Great Dane.

Temperament of the Sealyham Terrier Versus the Great Dane
The Sealyham Terrier has a better temperament than the Great Dane.
This is because the temperament score for the Sealyham Terrier is 100.0 percent while the temperament score for the Great Dane is 81.5 percent, according to the American Temperament Test Society (ATTS).
The American Temperament Test Society (ATTS) is a non-profit organization whose mission is to provide fair and objective evaluations of the temperaments of dog breeds.
Dog breeds with low temperament scores tend to show unprovoked aggression, they easily panic without quickly recovering from the panic, and they tend to avoid people. However, dog breeds with high temperament scores are not aggressive and are not shy. Also, these dogs are generally friendly and are protective of their owners.
The average temperament score across all dog breeds (over 250 breeds) is 83.7 percent.
With its temperament score of 81.5 percent, the Great Dane has a below-average temperament compared to other dog breeds.
With its temperament score of 100.0 percent, the Sealyham Terrier has an above-average temperament compared to other dog breeds.
The ATTS obtained the temperament scores of the Great Dane and the Sealyham Terrier by measuring the temperaments of 314 Great Danes and 1 Sealyham Terriers.

The Intelligence of the Great Dane versus the Intelligence of the Sealyham Terrier
| Great Dane | Sealyham Terrier | |
|---|---|---|
| Intelligence Rank | 48 out of 130 dog breeds | 56 out of 130 dog breeds |
| Trainability | Tend To Learn New Commands After 25 To 40 Repetitions | Tend To Learn New Commands After 40 To 80 Repetitions! |
Professor Stanley Coren, the famous psychology/neuropsychological professor and, dog lover/trainer measured and ranked the intelligence of about 130 different dog breeds.
According to Prof. Stanley Coren, the total intelligence that a dog demonstrates is the addition of three types of intelligence. These intelligence types are:
Prof. Coren showed that the Working/Obedience Intelligence of different dog breeds can be measured reliably. Thus, he was able to rank different dog breeds based on their Working/Obedience Intelligence.
This is important because according to Prof. Coren, 51 percent of a dog`s intelligence comes from its genes while 49 percent of a dog`s intelligence comes from the dog`s environmental circumstances.
To rank the intelligence of dog breeds, Prof. Coren employed the help of 208 dog obedience judges in North America to fill out a detailed survey on dog obedience. This number represented more than half of all of these judges in North America at the time. He also employed 63 veterinarians and 14 guard dog experts to collect data on the personality of different dog breeds.
Prof. Coren found that the Great Dane has an obedience intelligence rank of 48 out of 130 dog breeds. The Great Dane belongs to the `Average Working/Obedience Intelligence Dogs` category. This means that Great Danes tend to learn new commands after 25 to 40 repetitions.
The Sealyham Terrier has an obedience intelligence rank of 56 out of 130 dog breeds. The Sealyham Terrier belongs to the `Fair Working/Obedience Intelligence Dogs` category. This means that Sealyham Terriers tend to learn new commands after 40 to 80 repetitions!.
The Great Dane is more intelligent than the Sealyham Terrier.
However, Prof. Coren noted that a dog should not be judged based on its intelligence alone, that other factors such as sociability, adorability, and compatibility with the owner are other very important factors that new dog owners need to consider when deciding on a new dog.
The Popularity of Great Dane versus Popularity of Sealyham Terrier
Every year, the American Kennel Club (AKC) publishes information on how popular a dog breed is in that particular year. The AKC gets the popularity information of a breed from how many dogs of that breed the owners register with the AKC every year. The AKC collects this data for about 200 dog breeds. The AKC collects this data for purebred dogs only(no mixed or hybrid dogs).
The graphs and the table below show the popularity of the Great Dane and the Sealyham Terrier over the years.
Based on the AKC popularity data over the years, the Great Dane is more popular with dog owners than the Sealyham Terrier. This is because, over the years, the average popularity of the Great Dane is 15 out of about 200 dog breeds while the average popularity of the Sealyham Terrier is 155 out of about 200 dog breeds.

Popularity of Great Dane

Popularity of Sealyham Terrier
| Year | Great Dane Popularity Rank | Sealyham Terrier Popularity Rank |
|---|---|---|
| 2013 | 16 | 158 |
| 2014 | 15 | 169 |
| 2015 | 15 | 158 |
| 2016 | 14 | 155 |
| 2017 | 14 | 150 |
| 2018 | 16 | 164 |
| 2019 | 17 | 154 |
| 2020 | 15 | 148 |
| 2021 | 17 | 139 |
Health Problems of Great Dane versus Health Problems of Sealyham Terrier
Every dog breed has its own set of health problems that it has a tendency to develop. There is nothing like a perfect dog breed.
Both the Great Dane and the Sealyham Terrier are prone to certain genetic health conditions. The Orthopedic Foundation for Animals (OFA) is the organization that keeps track of health problems in dogs. Based on the extensive records that the OFA keeps, the OFA knows what health problems each dog breed is naturally prone to develop. Hence, the OFA recommends which health screening that breeders should perform on a dog breed to make sure that the breeders won`t breed `defective` dog parents that can pass down defective genes to their puppy offspring.
The more health problems a dog breed is prone to develop, the more health tests the OFA will recommend for that dog breed.
Based on our review of OFA records, we found that the Great Dane is prone to more genetic health problems than the Sealyham Terrier.
This is because the OFA recommends more screening health tests for the Great Dane than for the Sealyham Terrier.
4 health tests are recommended for Great Dane while 2 tests are recommended for the Sealyham Terrier.
Below is a detailed discussion of health problems in Great Danes and in Sealyham Terriers.
Great Dane Health Problems
Great Danes are genetically prone to certain health problems. However, breeders can reduce the chances of producing Great Dane puppies with genetic defects by making sure that a puppy`s parents are free from genetic health problems before allowing the parent to make puppies.
The OFA provides breeders recommendations on which genetic diseases that breeders should screen their dog parents and puppies for.
If you want a Great Dane puppy that will grow up to be healthy, make sure that your Great Dane breeder screens your puppy or your puppy`s parents for the health problems that the OFA recommends for your puppy`s breed. This will increase the chances that your puppy is free from genetic defects.
The following are the health tests that Orthopedic Foundation for Animals (OFA) recommends that breeders should screen Great Danes for:
You can find out more about OFA`s recommended tests for Great Danes here.
Sealyham Terrier Health Problems
Sealyham Terriers are genetically prone to certain health problems. However, breeders can reduce the chances of producing Sealyham Terrier puppies with genetic defects by making sure that a puppy`s parents are free from genetic health problems before allowing the parent to make puppies.
The OFA provides breeders recommendations on which genetic diseases that breeders should screen their dog parents and puppies for.
If you want a Sealyham Terrier puppy that will grow up to be healthy, make sure that your Sealyham Terrier breeder screens your puppy or your puppy`s parents for the health problems that the OFA recommends for your puppy`s breed. This will increase the chances that your puppy is free from genetic defects.
The following are the health tests that Orthopedic Foundation for Animals (OFA) recommends that breeders should screen Sealyham Terriers for:
You can find out more about OFA`s recommended tests for Sealyham Terriers here.
More Discussions on Health Problems in Great Danes and Sealyham Terriers
Based on our analysis of data from the Orthopedic Foundation for Animals, of all known genetic health problems in dogs, the health problem that is most commonly seen in the Great Dane Breed is Shoulder problems.
This is because the Great Dane ranks 4 out of 22 dog breeds for Shoulder problems. In fact, in a health test conducted on 183 Great Danes, 10 of them had Shoulder problems.
The genetic diseases that were found to commonly occur in Great Danes, and how common these diseases are in Great Danes relative to other dog breeds, are given below:
Based on our analysis of data from the Orthopedic Foundation for Animals, of all known genetic health problems in dogs, the health problem that is most commonly seen in the Sealyham Terrier Breed is Primary Lens Luxation problems.
This is because the Sealyham Terrier ranks 4 out of 17 dog breeds for Primary Lens Luxation problems. In fact, in a health test conducted on 542 Sealyham Terriers, 10 of them had Primary Lens Luxation problems.
The genetic diseases that were found to commonly occur in Sealyham Terriers, and how common these diseases are in Sealyham Terriers relative to other dog breeds, are given below:
The table below lists the common health problems in Great Dane and in Sealyham Terrier and the rank (prevalence), compared to other dogs, of these health problems in the Great Dane and the Sealyham Terrier:
| Disease | Great Dane Rank | Sealyham Terrier Rank |
|---|---|---|
| Shoulder problems | 4 out of 22 dog breeds | Not Common |
| Advanced Cardiac problems | 33 out of 71 dog breeds | Not Common |
| Dentition Database problems | 35 out of 49 dog breeds | Not Common |
| Congenital Cardiac problems | 40 out of 159 dog breeds | Not Common |
| Thyroid problems | 42 out of 115 dog breeds | Not Common |
| Eyes problems | 59 out of 182 dog breeds | Not Common |
| Elbow problems | 75 out of 144 dog breeds | Not Common |
| Hips problems | 92 out of 198 dog breeds | Not Common |
| Patella problems | 130 out of 145 dog breeds | Not Common |
| Primary Lens Luxation problems | Not Common | 4 out of 17 dog breeds |
*To learn more about each of these diseases, go to OFA.org and search for the disease.
Again, most of these health problems can be prevented through health screening. Responsible breeders screen male and female dog parents for genetic problems. These breeders will only breed dogs that are free of genetic defects. That way, there is little or no chance that their puppies will grow up to have genetic health problems. Always ask a breeder for the list of health tests the breeder screens their dogs for before buying a puppy from such a breeder.
Tolerates Being Alone: Great Dane versus Sealyham Terrier
Great Danes do not like to be left alone.
Sealyham Terriers do not like to be left alone.
Do Great Danes shed more than Sealyham Terriers?
Great Danes shed. They are not recommended for people with dog allergies.
Sealyham Terriers shed. They are not recommended for people with dog allergies.
Which is Easier to Groom, the Great Dane or the Sealyham Terrier?
Great Danes are very easy to groom.
Sealyham Terriers require a lot of grooming and they are not very easy to groom.
Which Dog Breed is more Dog-Friendly, the Great Dane or the Sealyham Terrier?
Great Danes get along very well with other dogs.
Sealyham Terriers get along very well with other dogs.
Are Great Danes good family dogs? What about Sealyham Terriers?
Great Danes are great family dogs. They are very affectionate with family.
Sealyham Terriers are great family dogs. They are very affectionate with family.
Is the Great Dane Easier to Train than the Sealyham Terrier?
Great Danes are very easy to train.
Sealyham Terriers are fairly easy to train.
Which one drools more, the Great Dane or the Sealyham Terrier
Great Danes have a very high tendency to drool.
Sealyham Terriers drool moderately.
How Kid-friendly are Great Danes and Sealyham Terriers?
Great Danes get along well with kids. They are kid-friendly.
Sealyham Terriers get along well with kids. They are kid-friendly.
Does the Great Dane Have a Higher Prey Drive than the Sealyham Terrier?
Great Danes have a moderate prey drive. They can sometimes chase after smaller animals and pets.
Sealyham Terriers have a very low prey drive. This means they get won`t chase after smaller pets. They tend to get along well with other pets.
Do Great Danes Bark and Howl? What about Sealyham Terriers?
Great Danes are highly vocal. They have the tendency to bark and howl.
Sealyham Terriers are highly vocal. They have the tendency to bark and howl.
Can Great Danes Tolerate Cold Weather? And can Sealyham Terriers Tolerate Cold Weather?
Great Danes cannot tolerate cold weather. They are vulnerable to the cold.
Sealyham Terriers can very well tolerate cold weather.
Wanderlust Potential: Great Dane vs. Sealyham Terrier
Great Danes have a moderate tendency to wander. This means that they sometimes get distracted by other animals or objects.
Sealyham Terriers have a moderate tendency to wander. This means that they sometimes get distracted by other animals or objects.
Can Great Danes Tolerate Hot Weather? Can Sealyham Terriers Tolerate Hot Weather?
Great Danes can tolerate hot weather as long as the weather is not too hot.
Sealyham Terriers can tolerate hot weather as long as the weather is not too hot.
Is the Great Dane Better for Apartment Owners than the Sealyham Terrier?
Great Danes do not adapt well to apartment living.
Sealyham Terriers adapt very well to apartment living.
Which is Better for New Dog Owners, the Great Dane or the Sealyham Terrier?
Great Danes are not the best dogs for new dog owners.
Sealyham Terriers are very good for new dog owners.
Great Dane Versus Other Dog Breeds
You may also be interested in how the Great Dane compares to other breeds aside from the Sealyham Terrier. So, see below the links to the comparison of the Great Dane to other breeds:
Great Dane versus Black Mouth Cur Great Dane versus Pomchi Great Dane versus English Toy Spaniel Great Dane versus Lhasa Apso Great Dane versus English Setter Great Dane versus Sealyham Terrier Great Dane versus American Bulldog Great Dane versus Scottish Deerhound Great Dane versus Kuvasz Great Dane versus Shiranian Great Dane versus German Longhaired Pointer Great Dane versus Alaskan Malamute Great Dane versus Black Russian Terrier Great Dane versus Belgian Tervuren Great Dane versus Whoodle Great Dane versus Afghan Hound Great Dane versus Pomsky Great Dane versus Bich Poo Great Dane versus Pug
Conclusion: Great Dane versus Sealyham Terrier. Which One is a Better Pet?
In summary, there is nothing like a better dog breed or a worse dog breed. The important question to ask is which dog breed better matches your interests and lifestyle. We hope our discussion above will help you in deciding which dog breed between the Great Dane and the Sealyham Terrier better suits you and your family.