All of them represent different elements of nature and have different appearances and abilities.
By default, if you want to evolve Eevee into another Pokémon, the choice of one of the three mentioned above will happen randomly. However, if you want to get a specific form of the Pokémon, follow the instructions below.
Evolving Eevee into Jolteon
Jolteon is an Electric-type Pokémon. In battle, its needles become as hard as steel, which helps in fighting opponents. It is an interesting option for those who collect thunderous monsters.
To obtain Jolteon, you need to rename Eevee to Sparky beforehand, and only then proceed with the evolution.
Evolving Eevee into Vaporeon
Vaporeon is a Water-type Pokémon. In Pokemon Go, it is one of the rarest and most powerful creatures. It can dissolve in water and become invisible to opponents. To obtain Vaporeon, you need to rename Eevee to Rainer beforehand, and only then proceed with the evolution.
Evolving Eevee into Flareon
Flareon is a Fire-type Pokémon. The cutest of the three Eevee evolutions. How to properly evolve Eevee into Flareon? To obtain Flareon, you need to rename Eevee to Pyro beforehand, and only then proceed with the evolution.
Interestingly, this Easter egg is a reference to the Pokémon animated series, where there were three brothers with different forms of Eevee. There was also a fourth younger brother who had a regular Eevee and did not want to evolve it.
