About SEAT Keys
There are 2 main types of SEAT key:
Remote Key
A Remote or All-In-One Key is a key you must insert into the ignition, a chip in the head communicates to the car, which allows it to start. Powered by a battery, a remote car key fob will feature buttons that can lock, unlock the vehicle and deactivate the alarm at a nearby distance without putting the keyblade into the door lock.
Smart Key
Smart keys, sometimes referred to as Proximity keys, allow you to enter and start the car without inserting a physical key blade. When you are in proximity of your vehicle the fob communicates via radio waves, allowing you to enter the car, lock it and drive.