Autel IM608 PRO II VS KM100: Latest and Best Selling ,Which One Should I Buy?

Autel IM608 PRO II and KM100 are both Autel key programming tool series products. One is the latest anti-theft series product of Autel's IM608 series that integrates OBD diagnosis and complete IMMO and programming; the other is the best-selling car key programming and IMMO product on the sales platform. Which one should I choose?

IM608 PRO 2 is upgraded based on IM608 and IM608PRO.The Autel IM608 Pro II is a powerful 10.1-inch Android tablet designed for professional diagnostics. It delivers advanced key & immobilizer programming, full-system vehicle scanning, and in-depth service functions—all in one high-performance tool.

The KM100 is a compact 5.5-inch Android tablet specializing in key programming & IMMO functions. Featuring Bluetooth VCI, it handles smart key generation & IMMO learning via OBD for 3000+ vehicles—including BMW, VW, Honda, and GM.

Key Features Comparison

Autel IM608 PRO II Highlights:

• Advanced key programming & immobilizer functions

The Autel IM608 PRO II offers complete key programming solutions for locksmiths and professionals, featuring advanced IMMO functions such as PIN/CS retrieval (all-key-lost scenarios), key generation and remote learning. It supports critical operations like IMMO ECU reset/adaptation and specializes in Mercedes-Benz 3rd-generation systems with dedicated add-key capabilities—making it a versatile tool for modern vehicle security services.

• All-system diagnostics

The Autel IM608 PRO II delivers full-system vehicle scanning with unmatched efficiency, capable of reading all car modules through a single device.Its advanced Auto Scan 2.0 technology provides comprehensive diagnostics, including alarm system checks, DTC retrieval/clearing, and real-time live data streaming. With access to 5-in-1 ECU data visualization, it offers workshop-grade precision for complete vehicle analysis.

Autel IM608 PRO II delivers full-system scans

• 99% wide vehicle coverage

The Autel IM608 PRO II delivers industry-leading 99% vehicle coverage, supporting over 15,000 models from 1996-2025 across American, European, and Asian manufacturers. With cutting-edge CAN FD & DoIP protocols and 2018+ FCA Secure Gateway access, it handles everything from mass-market brandsto luxury/exotics.

• Advanced ECU coding and programming

The IM608 PRO II scanner delivers factory-level ECU programming to enhance vehicle performance by 500%, offering both online (only BMW/Benz) and offline reprogramming. It handles new ECU installations, software updates, and bug fixes.It offers dual-mode functionality: online coding and offline coding . It enables luxury feature activation, ECU recalibration, and driving quality optimization—transforming base models into premium configurations.

Delivers factory-level ECU programming to enhance vehicle performance by 500%

KM100 Key Features:

• Professional & portable design

The KM100 has a 5.5-inch Android touch screen and is equipped with Bluetooth VCI. The KM100's mobile phone-like appearance makes it compact, portable, easy to operate and connect.

• 60-Second key generation (Autel universal only)

The KM100 can generate keys in just 1 minute using only 4 simple steps: AutoVIN/MMY selection, selecting the universal key menu, generating the key, and automatic analysis/redirection to immobilization.The KM100 is faster and more efficient, supporting over 700 models with a 50% speed increase.

• Full IMMO functions

The KM100 programmer offers full IMMO (immobilizer) functions via OBD on 90% of vehicles, including brands like BMW, Honda, and Tesla. Key features include PIN reading, smart key programming, emergency key simulation, IMMO data backup and restore, and ECU reset/adaptation/coding. The KM100 is designed for wide compatibility and advanced key programming needs.

Head-to-Head Comparison (IM608 PRO II vs KM100)

Model	IM608 PRO 2	KM100
Price	$2788	$415
Features
Processor	Qualcomm SDM660 Octa-core	PX30 4x ARM Cortex-A35
Touchscreen
Resolution	10.1inches,1920*1200	5.5inches, 1280*700
Memory	128G	64G
Battery Capacity	3.8V, 15000mAh	4950mAh
Android Version	Android 10.0	Android 9.0
Camera	8.0 Megapixe	8.0 Megapixe
Programmer	XP400 PRO	V200
Remote Expert	YES	NO
Function
Auto VIN	YES	NO
Read & Write EEPROM	YES	NO
Read & Write ECU/MCU	YES	NO
Key identify	YES	YES
Refresh key	YES	YES
Detect frequency	YES	YES
Generate transponder	YES(need XP400 PRO)	YES
Transponder simulation	YES(need APB112)	YES
Detect ignition coil	YES(need APB113)	YES
Online programming	YES(support partial Benz,BMW models)	NO
Diagnostic Function	YES	NO
Complete Service Functions	YES	NO
Hidden features	YES	NO

Should You Buy?

Choose IM608 PRO II If:

• You need an all-in-one diagnostic scanner that can perform diagnostic functions, provide 36+ special services,and have advanced key programming and anti-theft features.But if you want to realize all programming functions, you need to use other tools, so IM608 pro 2 full kit will perfectly meet your needs.

• You prefer a larger screen and higher performance.

• Your job requires you to be exposed to a wide range of car models, including Asian, European, American and other car brands

Choose KM100 If:

• You only need a key programming tool, then km100 is enough to meet your needs.

• You want a portable key fob programmer immobilizer tool that can improve your work efficiency

• You are a DIYer or small shop with basic needs

Conclusion

Although there are many differences between Autel IM608 PRO II and KM100, the biggest difference is that the IM608 PRO II has more complete diagnostic functions and advanced key programming functions, while the KM100 only has basic key programming functions. No matter which key programming tool can meet your most basic needs, choose the most suitable scanner according to your needs.