The anti-theft system is one of the most important components of a vehicle. Not only does it help protect your property, but its continuous upgrades have also improved the overall driving experience.
From traditional mechanical locks to semi-mechanical systems and now to smart keyless entry and immobilizers, every step forward in theft prevention brings new challenges for diagnostic scanners and key programming tools.
Autel’s lineup of key programming tools has evolved rapidly—from the user-friendly KM100 designed for basic key programming tasks to the advanced IM608S II, which not only handles complex key programming but also offers a wide range of service functions.
In this guide, we’re comparing three of the most talked-about models: Autel IM508S vs IM508S Pro vs IM608S II. We’ll walk you through the differences between the Autel IM508S, the upgraded IM508S Pro, and the advanced IM608S II—so you can choose the best key programmer for your work.
| Model | IM608S II | IM508S Pro | IM508S |
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| Price | $2788 | $1549 | $1194 |
| Processor | Qualcomm SDM660 Octa-core Processor(2.2GHz) | Cortex®-A55 processor (1.8 GHz) | Cortex®-A55 processor (1.8 GHz) |
| 0S | Android 10.0 | Android 11.0 | Android 11.0 |
| RAM+ROM | 4GB+128 GB | 4GB+64GB | 4GB+64GB |
| Display | 10.1 inch 1920*1200 | 7 inch 1024*600 | 7 inch 1024*600 |
| BT | BT V5.04 BR/EDR | No | No |
| HDMI | HDMI2.0 | No | No |
| SD Card | Support up to 64GB | Support up to 64GB | Support up to 64GB |
| GPS | Yes | No | No |
| Connection | MaxiFlash JVCI+ | wire connection | wire connection |
| Camera | Rear: 16 MP, AF with Flashlig | No | No |
| Programmer | XP400 Pro | XP400 Pro | XP200 |
| XP400 PRO, No Burnout Anymore | Yes | Yes | Yes |
| Universal Transponder & Key Generatlon | Yes | Yes | Yes |
| Transponder simulation & Editing & Cloning | (Need APB112) | (Need APB112) | (Need APB112) |
| EEPROM/MCU/Engine ECU/IMMO ECU Reading&Writing |
Yes | Yes | Yes |
| Unlock Key | Suppor 11 Key Types(Audi/BMW) | Suppor 11 Key Types(Audi/BMW) | Suppor 11 Key Types(Audi/BMW) |
| Write Key via Dump | 4 Vhicle Makes | 4 Vhicle Makes | 4 Vhicle Makes |
| Mercedes infrared Key Read/Write | Yes | Yes | Yes |
| IMMO Function via Programmer | Top | Professional | Professional |
| Write key to ECU by programmer | Yes | Yes | Yes |
| Advanced Ecu Coding | Yes | No | No |
| Services Function | 40+ | 30+ | 30+ |
| D-PDU/RP1210 | Yes | Yes | Yes |
| CAN FD/ DOIP | Yes | Yes | Yes |
| Remote Expert | Yes | No | No |
| Active Test | Yes | Yes | Yes |
| Digital inspection(Work with MV108) | Yes | No | No |
The Autel IM508S and IM508S Pro share the same hardware specifications. Both are equipped with a Cortex-A55 processor (1.8 GHz), a 7-inch touchscreen, and a 5000mAh battery. These features make them reliable and efficient Autel key programming tools for everyday diagnostic and immobilizer tasks.
In comparison, the IM608S II is a flagship product, equipped with a more powerful Qualcomm SDM660 octa-core processor (2.2GHz), 4GB RAM + 128GB storage, a 10.1-inch HD screen, and supports Bluetooth, HDMI 2.0, GPS and 16MP camera, and wireless connection through MaxiFlash JVCI+.
The Autel IM608S II has more powerful hardware.
In terms of programmers, the IM508S uses the basic XP200, while the IM508S Pro and IM608S II are equipped with a more powerful XP400 Pro programmer with an anti-burn design.
All three devices support basic IMMO functions such as key generation, transponder editing, and EEPROM/ECU read and write, but advanced ECU coding functions are limited to the IM608S II. In addition, the IM608S II has a stronger ability to write keys to ECUs, supports more vehicle brands, and has richer service functions.
In terms of diagnostic functions, the IM608S II is significantly more comprehensive, with more than 40 built-in service functions, supporting Remote Expert remote assistance, active testing, digital endoscope (MV108) connection, etc.
Although the IM508S and IM508S Pro also provide basic diagnostic capabilities, they have fewer service functions, supporting only 30+ items, and lack remote and visual detection capabilities.
The Autel IM608S II has more than 40 service functions.
Here’s a quick recommendation based on your needs:
The Autel IM508S, IM508S Pro, and IM608S II are all powerful and reliable key programming tools from Autel. By understanding the key differences between them, you can make a faster, smarter buying decision—and choose the Autel key programmer that best fits your needs.
Overall, the IM608S II is ideal for professionals needing advanced features. The IM508S Pro suits experienced users focused on IMMO programming, while the IM508S is a budget-friendly choice for basic key programming.
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