Latios looks similar to Latias, though it is blue and a bit larger; it is also similar to Lugia. Latios has an upside-down, white teardrop shape in the center of its blue face. In the middle of his chest, Latios has a red triangle, much like Latias', whose is blue, showing in some way they are related. In the movie Pokémon Heroes, Latios and Latias both serve as guardians.
In Mega form, Latios has purple skin tone.
Latios also appeared in Super Smash Bros. Brawl in a Poké Ball. When Latios is released it will use the move Steel Wing with Latias. Latias is Latios' sister.
Latios comes with the ability Levitate, which causes Ground-type moves to always miss excepts from the move Sand Attack.Latios is able to fold in his arms and fly at the speed of a jet. He can also make foes see images he has seen or what he imagines in his head. He can understand human speech. Even if he is hiding, Latios can detect the locations and emotions
of others using telepathy. Latios can also refract light around him to make him appear invisible unless the light strikes him just right. Latios is the only known Pokémon that learns Luster Purge.
In the movie Pokémon Heroes Latias and Latios also had the ability "Sight Sharing" which allowed Latias and people around her to see exactly what Latios is seeing and vice versa.
Latios first debuted with his sister Latias in Pokémon Heroes. Annie and Oakley captured Latios and used his DNA along with the stolen Soul Dew to power the Defense Mechanism in the museum of Alto Mare. Latios ended up sacrificing himself to save Alto Mare from an enormous tidal wave.
Mega Latios and Mega Latias looks exactly the same except for the eyes. Mega Latios has red eyes, while Mega Latias has yellow. In the shiny versions, Mega Latios still has his red eyes, while Mega Latias has green eyes.
Latios and Latias in the manga.
Latios and Latias spotted by Brendan and May with their Pokemon on Southern Island.
Brendan and May flying on Mega Latias and Mega Latios.