Autel MS909S2, MS919S2, Ultra S2: 2025 AI-Powered Scanners

Introduction

In 2025, the automotive diagnostics tools market is still on the rise, with AI playing a bigger role than ever. Diagnostic scanners are shifting toward smarter, more data-driven, AI-powered solutions to keep up with the industry’s needs.

Autel released three new automotive diagnostic scan tools in 2025—the Autel MS909S2, MS919S2, and Ultra S2. These three Autel scanners are upgrades from their predecessors, incorporating AI technology. In two previous articles, we analyzed the upgrades and key differences between the Autel MS919S2 and MS909S2 diagnostic tools compared to the MS919 and MS909.

Today, we’ll compare and analyze the key differences between Autel’s three latest automotive diagnostic tools—the MS909S2, MS919S2, and Ultra S2—and explore how to choose the best one for your needs when faced with these three AI-enabled scanners.

Brief Overview

What are the Autel MS909S2, Autel MS919S2 and Autel Ultra S2?

Both the Autel MaxiSys MS919S2 and MS909S2 are professional-grade diagnostic scanners with pgraded hardware and near OEM-level capability. It offers enhanced PID analysis, advanced graphing, and multi-PID comparison to quickly spot engine, performance, and emissions issues.

The Autel MaxiSys Ultra S2 is Autel's most advanced automotive diagnostic scanner. It features a larger 13.7-inch touchscreen, 512GB of internal storage, a powerful 2.7GHz octa-core processor, and a newly upgraded 6-in-1 VCMI2 module. These upgrades deliver faster operation, wider vehicle coverage, and near-OEM diagnostic capabilities.

Autel MaxiSys Ultra S2

$5589.00

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Autel MaxiSys Ultra S2 Diagnostic Scanner | With AI, 6-IN-1 VCMI2, Topology 3.0, Enhanced Oscilloscope, 48+ Services, Upgraded from Autel Ultra (US Shipping Only)

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AI Features in MS919S2, MS909S2, Ultra S2

• Hands-free AI assistant: Technicians can control this AI assistant to complete scanning, run tests and perform maintenance work simply by issuing voice commands, truly "freeing their hands".
• Digital Vehicle Inspection (DVI): Technicians can not only provide customers with inspection results, but also visually display the vehicle's condition through photos, videos and notes, making communication more transparent and service more professional.
• Real-time data fusion technology: It can intelligently integrate and analyze multiple PID data, helping technicians discover hidden faults more efficiently and accurately, greatly improving diagnostic reliability.
• Topology 3.0: Faster, clearer, smarter vehicle module visualization and real-time monitoring

MS909S2, MS919S2, and Ultra S2 use Topology 3.0 for clearer real-time module views.

Side-by-Side Comparison Table

You can watch the video below to learn about the features and differences between Ultra S2, MS909S2, and MS919S2:

Autel MS909S2 vs MS919S2 vs Ultra S2: Key Differences

Screen and Battery

Both the MS909S2 and MS919S2 feature an 11-inch display and a 15,000mAh battery, striking a balance between portability and battery life, making them suitable for everyday diagnostic tasks.

In contrast, the Ultra S2 offers a larger 13.7-inch display and an 18,000mAh battery. This not only displays topology maps, data flows, and diagnostic reports more clearly on the same screen, but also supports extended, high-load use, making it more suitable for professional workshops and technicians who require extended use.

Storage Capacity

Both the MS909S2 and MS919S2 feature 12GB of RAM and 256GB of internal storage, sufficient for general diagnostic and data storage needs.

However, the Ultra S2 upgrades to 12GB of RAM and 512GB of internal storage, ensuring storage of larger amounts of diagnostic records, software packages, and customer vehicle data. This is a valuable advantage for repair shops that need to maintain long-term repair history or process complex vehicle data.

The Ultra S2 has a larger screen, battery capacity, and storage.

VCI and Oscilloscope

The MS909S2 is equipped only with the MaxiFlash VCI2 and does not include an oscilloscope, making it suitable for standard diagnostics and ECU programming.

The MS919S2 and Ultra S2, on the other hand, feature the MaxiFlash VCMI2, a built-in 4-channel oscilloscope that supports oscilloscope, waveform recorder, and signal generator functions. This allows technicians to not only perform routine diagnostics but also conduct in-depth electronic circuit testing and signal analysis.

Charging Dock and Weight

The MS909S2 and MS919S2 do not include a fast charging base and weigh 1656.5 g (3.65 lbs.), making them lighter overall and suitable for scenarios that require frequent movement.

In comparison, the Ultra S2 comes with a fast-charging dock, bringing its weight to 2115.4 g (4.66 lbs.). While less portable, its larger screen and higher-capacity battery provide longer battery life and a clearer diagnostic experience at fixed workstations, making it ideal for extended use in professional workshops.

The MS919S2 and Ultra S2 have a 4-channel oscilloscope for advanced diagnostics.

Conclusion: Which one fits you best?

If you need a lightweight, cost-effective diagnostic tool, the MS909S2 is an excellent choice, sufficient for daily diagnostic and programming needs.

If you're looking for more advanced diagnostic capabilities, especially those requiring the use of an oscilloscope and more in-depth electronic testing, the MS919S2 is a better fit.

If you're a professional repair shop that values a large screen, extended battery life, and increased storage, and wants efficient diagnostics at a fixed workstation, the Ultra S2 is undoubtedly the best choice.

Each of these three products has its own niche, allowing you to choose the one that best suits your budget, usage scenarios, and functional requirements.