The navigator is a purple wrist device with a round Robotnik-themed cover on it. Pressing the switch on the side folds out the cover, revealing a small satellite disk, two separate keyboards and a screen to locate objects or destinations. After being modified by Tails, the navigator could as well locate robots built from the same parts and temporarily interfere with their system.
Later, Tails modified the navigator's processor when he noticed it and Hyper Metal Sonic were built from the same parts, allowing him to access Metal's data bank and locate him and Sonic. During Sonic and Metal's climatic battle, Tails used the navigator to temporarily overload Metal. However, when he tried to do it again, the navigator was blown up by Robotnik.