Longevity

Longevity is the ability to live a long life.

Mainstream Smurfs Media
In mainstream Smurfs media, the Smurfs have longer life spans than humans, with young Smurfs maturing from infancy to adulthood in 100 to 150 years, according to the media universe. Papa Smurf was originally the longest-lived among them at 542 or 546 years of age, with Grandpa Smurf being twice his son's age. In the cartoon show, this longevity is due to the power of the Long Life Stone, which also controls their rate of aging.

Some humans like Selwyn and Tallulah have managed to live more than 200 years, most likely due to the use of magic.

Empath: The Luckiest Smurf stories
In the EMPATH: The Luckiest Smurf story series, the Smurfs' longevity is part of their basic biology, though Tapper believes it was also part of humans for several generations past the fall of man through the first sin and will be restored when the Son of the Almighty returns to make the world a paradise again.