Mecha: Shigeru Ookido no Sumaho Rotom

This Pokédex was Ash's Pokédex when he was originally traveling in Kanto. It is nicknamed "Dexter" in the dub. It is shown to have a basic AI understanding, being snarky with Ash when he asked why a Rattata was going through his bag.

This Rotom Phone was given to Goh by Professor Cerise. It helps Goh keep track of how many Pokémon he's caught.

This Rotom is owned by Chloe. It was given to her by her father, Professor Cerise, after she caught Eevee.

This Rotom Phone is used by Kricketina Kylie. It helped confirm a match with Ash's Rotom Phone.

This Rotom Phone was given to Jessie, James, and Meowth for fieldwork, but it acts like a bootleg. It's sassy, barely gets Pokédex entries right, and goes to sleep often.

This Rotom Phone is owned by Bea, and helped confirm matches between Bea and Ash. It is pink, instead of red.

This Rotom Phone is owned by Ash and was given to him by Professor Cerise to help with his research. It serves as Ash's Pokédex, and can also make calls to other people.

This Rotom Phone is owned by Visquez, and was used to confirm a battle with Ash. It's yellow, instead of red.