September 19, 2025 keumi zhong

Autel IMMO Tools Comparison: KM100, IM508S, IM508S PRO, IM608S II (2025 Guide)

Choosing the right key programming and diagnostic tool can be tricky. With options from the budget-friendly KM100 to the powerhouse IM608 PRO II, it’s easy to get overwhelmed by features, compatibility, and pricing. Are you unsure which tool handles advanced IMMO functions? Or which one gives full diagnostics without breaking the bank?

This Autel IMMO Tools Guide makes it simple:

Quickly compare features: See what each tool can do, from basic key learning to full ECU programming.

Match your workshop needs: Whether you’re a beginner, a small shop, or a professional automotive expert, find the right fit.

Save time and money: Avoid trial-and-error purchases, and pick the tool that boosts efficiency and maximizes ROI.

From easy key generation to advanced guided functions, this comparison helps you make an informed choice and get the job done right—every time.

Comparison Overview

IMMO Functions

IM608 PRO II = IM508S PRO > IM508S > KM100

Diagnostic Functions

IM608 PRO II > IM508S PRO = IM508S

(IM608 Series ≈ Autel MS908, IM508 Series ≈ Autel MK808)

Service Functions

IM608 PRO II > IM508S PRO = IM508S > KM100

Hardware Performance

IM608 PRO II > IM508S PRO = IM508S > KM100

KM100: Best Entry-Level Option for Beginners and Mobile Use

If you’re new to key programming or need a fast, portable solution, the Autel KM100 is perfect. Compact, lightweight, and easy to use — ideal for locksmiths on the go. Despite its affordable price, it delivers impressive functionality and value, making it a bestseller among beginners and mobile professionals.

✔ Key Generation in 60 Seconds
✔ Free Lifetime Online Update
✔ Key Learning via OBD for 90% Vehicles
✔ Program Keys for 700+ Vehicles
Know More

IM508S: Affordable Tablet with Basic IMMO + Diagnostics

Looking for a balance between affordability and functionality? The Autel IM508S is a tablet-based tool offering essential diagnostic functions and basic IMMO/key programming. Ideal for smaller workshops or technicians who don’t require full advanced IMMO capabilities.

✔ Advanced IMMO Level
✔ All Systems Diagnostic
✔ Smart & Expert Modes
✔ 3000+ Bi-Directional Active Tests
Know More

IM508S PRO: A Powerful Enhancement in IMMO Capabilities

Pairing with the XP400 PRO, the IM508S PRO unlocks broader vehicle coverage and offers top-level IMMO functions comparable to the IM608S II / IM608 PRO II.

✔ Top-Tier IMMO Level
✔ 2 Years Free Updates
✔ Come With XP400 PRO Kit
✔ Upgraded From 28+ to 40+ Services
Know More

IM608S II / IM608 PRO II: For Professionals Who Want It All

If you demand maximum power, coverage, and advanced diagnostics, the IM608S II / IM608 PRO II is the ultimate tool. Featuring upgraded hardware and software, it combines powerful IMMO functions, key programming, OE-level diagnostics, and advanced service functions — all in one professional-grade tablet.

✔ High-Performance Hardware
✔ Broad Vehicle Coverage
✔ Enhanced Usability
✔ XP400 PRO Integration
✔ Professional ECU Coding
✔ 40+ Maintenance Functions
✔ FCA AutoAuth & Cloud Reports
✔ Top-Tier IMMO & Key Programming
Know More

👉 Tip: Swipe left to explore more models

Feature / Model	KM100	IM508S	IM508S PRO	IM608 PRO II
Image
Price	AU $639.00	AU $1,399.00	AU $2,299.00	AU $4,169.00
Buy Now	Shop Now	Shop Now	Shop Now	Shop Now
Key Features	Universal Key Generation in 60s Key learning via OBD for ~90% vehicles Supports 700+ models Free lifetime online updates	Basic diagnostics IMMO key learning & data reading Smart & Expert modes 3000+ bi-directional tests 28+ service functions	Advanced IMMO functionality 40+ service functions EEPROM & MCU read/write Supports XP400 PRO for expanded programming 2 Years Free Updates	High-performance 10.1” tablet Full IMMO & ECU programming OE-level full system diagnostics XP400 PRO integration 40+ maintenance/service functions Online/offline ECU coding & guided functions
Suitable For	Beginners, mobile locksmiths, budget-conscious workshops	Small workshops, beginner-to-intermediate technicians	Medium workshops needing advanced IMMO & diagnostics without IM608 cost	Professional automotive workshops, advanced key programmers
Hardware
Appearance	Touch screen handset	Touch screen tablet	Touch screen tablet	Touch screen tablet
Connection	Bluetooth	OBD Cable	OBD Cable	Bluetooth（JVCI+）
Processor	PX30 4x ARM Cortex-A35	Cortex-A55 processor	Cortex-A55 processor	Qualcomm SDM660 Octa-core
Screen	5.5-inch	7-inch	7-inch	10.1-inch
WiFi	✔	✔	✔	✔
Bluetooth	✔	×	×	V5.0+BR/EDR
System	Android 9.0	Android 11.0	Android 11.0	Android 10.0
Memory	2G+64G	4G+64G	4G+64G	4G+128G
Battery	4950mAh	5000 mAh	5000 mAh	15000 mAh
Microphone	×	×	×	1MIC
Headphone Jack	×	×	×	✔
Loudspeaker	×	×	×	2
GPS	×	×	×	✔
Camera	×	×	×	16.0 Megapixel
Programmer	Built-in	XP200	XP400PRO	XP400PRO
IMMO Functions
IMMO Scan	✔	✔	✔	✔
Key/Remote Learning	✔ (limited via OBD)	✔	✔	✔
Retrieve IMMO Data, Backup/Restore IMMO Data	×	✔	✔	✔
IMMO ECU Reset / Adaptation / Refresh / Coding	×	✔	✔	✔
XP200/XP400PRO	×	XP200	XP400PRO	XP400PRO
Reading/Writing EEPROM	×	✔	✔	✔
Reading/Writing MCU	×	✔ (basic)	✔ 3000+	✔ 3000+
Reading/Writing IMMO ECU	×	✔ (only reading)	✔	✔
Remote Frequency Detect & Support PC	×	×	✔	✔
IC CARD & MC9S12 Encryption Chip Read/Write	×	×	✔	✔
Diagnostic Functions
Diagnostic Level	×	Basic	Basic	Medium
Auto Scan	✔	✔	✔	✔
Reading/Erasing Codes	×	✔	✔	✔
Read Live Data	×	✔	✔	✔
Read Freeze Data	×	✔	✔	✔
Bi-directional Control	×	✔	✔	✔
Services	×	✔ 28+	✔ 40+	✔ 40+
Reading/Writing Engine ECU info	×	Only Reading	Only Reading	✔
Online Coding	×	×	×	✔ (Mercedes-Benz vehicles not covered)
Offline Coding	×	×	×	✔
Guided Function	×	×	×	✔ (Mercedes, BMW, JLR vehicles not covered)
ECU Online Programming	×	×	×	✔ (Part of BMW/Benz)
ECU Offline Programming	×	×	×	✔
Programmer Functions
Universal Key Generation	✔ (in 60s)	✔	✔	✔
Transponder Generation	✔	✔	✔	✔
Transponder Reading & Editing & Cloning	✔	✔	✔	✔
Transponder Simulation (Chip: ID46, ID47, ID48, ID49, ID4A, ID8A)	✔	✔ via APB112	✔ via APB112	✔ via APB112
Frequency Detection	✔	✔	✔	✔
Ignition Coil Detection	✔	✔	✔	✔
Other Functions
Other Features	×	Remote Desk	Remote Desk	Remote Desk, SCAN VIN License
In-Vehicle Network (IVN)	×	CAN FD(Adapters required)(Except NA)	CAN FD(Adapters required)(Except NA)	D-PDU/RP1210/DOIP/CAN FD
Remote Expert	×	×	×	✔
...	...	....	...	...