Level 25.
No, it isn't possible to find Eevee in Sapphire. You'll have to trade one from FireRed/LeafGreen.
I believe that you have to get the eevee to max happiness ( or really high ) and level it up in the nighttime.
you cant you have to trade from leafgreen or firered
you can get a shiny Eevee on Pokemon leafgreen but its rare. its about a 1/5000 to get it
You can't. Eevee must be traded from FireRed, LeafGreen, or XD in order to be obtained on Ruby.
It doesn't evolve by itself you have to give it an evolving stone
You have to trade it from Firered or Leafgreen. (Unless you use a cheat.)
Ruby: Trade eevee from firered, leafgreen. Level up at night. Sappire: Trade eevee from firered, leafgreen. Level up at night. Emerald: Trade eevee from firered, leafgreen. Level up at night. Firered: Celadon Mansion, top floor. Trade to othergames. Leafgreen: Celadon mansion third floor. Trade to other games (ruby sappire, emerald, diamond, pearl, platinum.) Diamond: House next to the Pokemon center in hearthome after you get the natonal dex. Level up at night. Pearl: House next to the Pokemon center in hearthome after you get the natonal dex. Level up at night. Platinum: House next to the Pokemon center in hearthome after you get the natonal dex. Level up at night.
Eevee can be found on the roof of the Pokemon Mansion in Celadon City. You have to go around and use the back entrance, though, to get to the room where you find it.
This only happens in diamond, pearl and platinum not firered and leafgreen but there is a moss rock where you bring an evee that has max friendship with you level it up near the rock and it will become a leafeon.
You can get an Eevee in Celadon City. If you go behind the buildings up to the north there is a back entrance to a building. go in there and on a desk will be a pokeball on the top floor. inside is a level 20 eevee. hope this helps. -mewtwometwo
Eevee is not available in Pokémon Sapphire. Eevee is available in Pokémon FireRed and LeafGreen and you may be able to trade it from LeafGreen or FireRed to Sapphire.