Which Eeveelution Are You?

Vaporeon, the first of the Eeveelutions in National Pokédex order, is a Water-type Pokémon. It evolves from an Eevee that is exposed to a Water Stone.

Jolteon is the second of the Eeveelutions, evolving from exposure to a Thunder Stone, and is an Electric-type Pokémon.
Jolteon is the only Eeveelution without an obvious tail. However, in the The Electric Tale of Pikachu manga, it is shown to have a stubby tail under its spikes, although the tail is absent from its Generation V backsprite.

The final member of Generation I's Eeveelution trio is Flareon, a Fire-type Pokémon, evolving from Eevee when it is exposed to a Fire Stone.
Flareon is the only Eeveelution with a type advantage over more than one other Eeveelution. 

The Psychic-type Espeon evolves from Eevee when it is raised to maximum friendship and gains a level during the daytime. It, alongside Umbreon, is the starter Pokémon for Pokémon Colosseum.
Espeon is the only Eeveelution not to have a type advantage over another at all. 

Umbreon is the second of the two Generation II Eeveelutions, a Dark-type Pokémon. Umbreon evolves from Eevee when it gains a level during the nighttime with maximum friendship. It, alongside Espeon, is the starter Pokémon for Pokémon Colosseum. 

Leafeon is the Grass-type evolution of Eevee. When an Eevee is leveled up near a large, mossy rock, it will evolve into this Pokémon.
Leafeon is the only Eeveelution whose base stat in Special Defense is lower than 95.

Glaceon is an Ice-type evolution of Eevee. Glaceon evolves from Eevee when it is leveled up near an ice-covered rock.