Magnemite, along with its evolution Magneton, were pure Electric-type Pokémon in Generation I, but became dual-type Electric/Steel in Generation II. This makes them the first Pokémon to ever change typing.
Magnemite is the first Steel-type Pokémon in National Pokédex order.
Despite most of Magnemite's Pokédex entries saying they are able to float through the air by employing powerful electromagnetic waves or even anti-gravity, Magnemite does not have the Ability Levitate, so it is still affected by Ground-type moves. However, starting in Generation IV, Magnemite can learn Magnet Rise, which simulates Levitate for five turns.
Magnemite, along with Magneton, has appeared in every regional Pokédex. This is due to the Sinnoh Pokédex's expansion in Platinum and the Unova Pokédex's expansion in Black 2 and White 2.
Magnemite and its evolution Magneton are two of the few Pokémon that had their cry changed slightly in Generation III. This was due to Generation III utilizing a better sound effects game engine and newer game system.
Pokémon Snap is the only form of a Pokémon canon that shows two Magnemite bonding, similar to a Magneton. However, when a picture is taken, they are still called Magnemite.
In Generation V, Magnemite was the most traded Pokémon on the GTS. This is probably due to what is known as the Magnemite chain/coil: a scheme by which players could increase the number of visitors to their Join Avenue in Black 2 and White 2 by trading Magnemite on the GTS. The scheme originated with Japanese players and became popular worldwide.
