This tiny dog can weigh as little as 3 to 7 pounds! So seniors who love to carry their pets around will not have a difficult time with this breed. Small but with a big heart, these dogs are very affectionate and loyal. The Pom, as it is often called, can fit inside your bag while you go to the grocery store and be very comfortable. Most of all, they enjoy napping on your lap. Surprisingly, they descended from large sled-dog breeds. Most specifically the German Spitz. However, as they adapted to what they are now, the Pom makes a suitable pet for seniors who live in apartments. They also can tolerate being alone if needed.