What is Russian Dwarf Hamsters Lifespan? It's best to put this into consideration when getting a pet hamster. Generally, hamsters have a short lifespan. That their lifespan averages 2 years doesn’t imply it won’t die before 1 or 2 years. Nonetheless, if you'll be able dead hamster to prolong the longevity of your dwarf hamsters by how nicely you care for them. With correct care and constant therapy from a vet. Your hamsters can not only dwell longer but in addition live wholesome, enjoyable, and completely satisfied.