According to the veterinarian website Doctors Foster and Smith, dwarf hamsters typically live about two years. Fully grown, they are 2 to 4 inches in length.
According to PetSmart, dwarf hamsters move fast, are active and are able to jump 1 foot high. Therefore, as a pet, a dwarf hamster should be kept in a large cage or pet habitat with several activities available, such a running wheel and chew sticks. Because they are so small and quick, these animals are not easy to hold and are often safer to enjoy through observation of them in their homes. The Doctors Foster and Smith site observes that dwarf hamsters are quite capable of escape into the larger household, which presents them with many dangers.