Autel IM508S vs Autel MaxiIM IM508S PRO

Both are the same IM508S tablet; the difference is the key programmer bundled with it. The IM508S ships with the XP200, which handles transponder read/write and EEPROM/MCU work for most everyday key jobs. The IM508S Pro ships with the XP400 Pro, which adds ECU read/write, MC9S12 encryption, IC card, Mercedes infrared key and BMW CAS and VW/Audi MQB coverage. Buy the Pro if you program keys across many brands or do bench work; the standard IM508S covers guided key learning and full-system diagnostics for less. Owners of the base unit call it easy to use and portable with good coverage; the Pro's heavier kit suits a bench in a shop more than a pocket.

• Choose the Autel IM508S if you want guided key learning, all-system diagnostics and maintenance resets in a light 1.72 lb handheld and your key work stays on common transponder and EEPROM jobs.
• Choose the Autel IM508S Pro if you need the XP400 Pro's ECU read/write, MC9S12, IC card, Mercedes infrared and BMW CAS or VW/Audi MQB key programming, and you work at a bench rather than on the move.