PokéNav

A PokéNav is a type of electronics equipment found in Hoenn. It's short for "Pokémon Navigator". It was produced by the Devon Corporation under the orders of Mr. Stone, who wanted to find a way to keep track of a Pokémon's feelings. Mr. Stone gives it to the protagonist of Pokémon Ruby, Sapphire, and Pokémon Emerald for recovering the Devon Goods from Team Aqua or Team Magma. They appear to be small, compact-disk-shaped devices. The Johto analog to the PokéNav appears to be the PokéGear.

In the Pokémon anime, Max has a PokéNav he received as a traveling gift from his parents.

They are chiefly useful for Pokémon Coordinators to keep track of a Pokémon's status for Pokémon Contests.

It has several functions:

Map

The PokéNav displays a map of Hoenn, along with the current location of its owner.

Condition

The PokéNav checks the Cool, Beauty, Cute, Smart, and Tough condition of Pokémon in detail. It can search through party Pokémon only, or all Pokémon owned combined.

Trainer's Eyes

The PokéNav will keep track of 69 unique trainers and alert the user when they want a rematch. Appears only in Pokémon Ruby and Pokémon Sapphire.

Match Call

In Pokémon Emerald, the Trainer's Eyes is upgraded to the Match Call. In addition to the features of the Trainer's Eyes, it allows its user to call anyone who has had their PokéNav registered with theirs, similar to the cell phone feature of the PokéGear. It can also keep track of more trainers.

Ribbons

The PokéNav will display the Ribbons Pokémon has acquired, either via Pokémon Contests or special events.