To evolve Eevee into Espeon, the method depends on the Pokémon game you are playing, but here are the main ways:
In Pokémon GO
- Set Eevee as your buddy.
- Walk at least 10 kilometers with Eevee as your buddy and earn 2 Eevee candies.
- Evolve Eevee during the daytime while it is still your buddy.
- Evolving during the day will yield Espeon, while evolving at night will yield Umbreon
In Main Series Games (e.g., Pokémon Black, White, and others)
- Raise Eevee's friendship (happiness) to a high level (above 220 pre-Sword/Shield or 160 post-Sword/Shield).
- Level up Eevee during the daytime (the game’s internal clock determines day vs. night).
- Eevee will evolve into Espeon if leveled up during the day with high friendship.
- It helps to have Eevee hold a Soothe Bell to increase friendship faster.
- Avoid Eevee knowing any Fairy-type moves, or it may evolve into Sylveon instead
In Pokémon Legends: Arceus
- Raise Eevee’s friendship to a high level.
- Ensure Eevee does not know any Fairy-type moves.
- Evolve Eevee during the daytime.
- This will cause Eevee to evolve into Espeon instead of Sylveon
Summary
- Walk 10 km with Eevee as buddy and evolve during the day (Pokémon GO).
- Increase friendship and level up during the day (main series games).
- Avoid Fairy moves to prevent evolving into Sylveon (Legends: Arceus and others).
This process ensures Eevee evolves into Espeon rather than any other Eeveelution.