The market of heavy duty diagnostic tools is dominated by the Autel MaxiSys series; the MS909, MS919, and Autel Maxisys ultra. Each of these truck scanner from Autel is designed with full OBD2 kits for advanced coding and auto diagnostic functions. But which of these auto diagnostic tools is the best and which should you buy for your vehicle?

This article dives deep into the features, functions, and pros and cons of the MS909, MS919, and MS Ultra to reveal all you need to know about picking the best option for you.

In this article, we’ll:

  • Explore the specs of the MS909, MS919, and MS Ultra
  • Compare the features of the MS909, MS919, and MS Ultra
  • Pick out the best of the three MaxiSys series.

Let’s dive in. First, let’s check out the MS909 scanner.

Autel MaxiSys (MS909)

The Autel MaxiSys (MS909) is an improvement of the Autel MK908 Pro. It is battery-operated and features an android 7.0 operating system with a screen size of 9.7 inches. The MS909 offers 36+ service functions including EPB, BMS, Injector coding, and lots more.

MaxiSys (MS909) also offers comprehensive solutions, how-to videos, DTC analysis and troubleshooting, and repair assistance on several auto problems so you can fix these problems yourself like an expert.

Key Features of The Autel MaxiSys (MS909)

· Screen size: 9.7 inches (Touchscreen)

  • Display resolution: 2048*1536
  • Operating system: Android 7.0 OS
  • Repair assist feature
  • 16MP back/5MP front camera
  • Battery: 15,000 MAH (8hrs)
  • Storage: 128GB SSD / 4GB RAM
  • 3GHz + 1.7GHz Octa-Core Processor
  • Cost: $3,299

Autel MaxiSys (MS919)

The 2022 MS919 tool is an updated model of the MaxiSys elite. The MS919 is an intelligence-based auto diagnostic tool with advanced features for vehicle coding, ECU (electronic control unit) programming, and auto diagnostic scanning. The scanner features a lightweight design which makes it handy and user-friendly.

The MS919 is designed with an OE-level car diagnostic function, 5-in-1 VCMI, and octa-core processor making the scanner fit for 99.9% of vehicles made between 1996 and 2022.

Key Features of The Autel MaxiSys (MS919)

  • 3GHz + 1.7GHz Octa-Core Processor
  • Auto repair assist and troubleshooting (DTC analysis and auto repair tips)
  • Operating system: Android 7.0
  • 36+ services including oil reset, suspension calibration, coding, and injection
  • Screen: 9.7 inches touchscreen and 2048*1536 display resolution
  • Battery: 15,000 MAH (8hrs operation)
  • Memory: 128GB SSD / 4GB RAM
  • 5-in-1 VCMI function
  • ECU programming
  • Cost: $3,999.

Autel MaxiSys Ultra

The MaxiSys ultra is the hybrid of the Autel MaxiSys series. The auto diagnostic scanner is an improvement of all the previous types of Autel scanners. MaxiSys ultra features a 12.9 inches LCD touchscreen size with a 2732*2048 DPI display resolution. With an advanced battery and storage capacity, the MaxiSys ultra is designed for even heavy-duty vehicles.

The split-screen display feature, 5-in-1 VCMI device, auto repair tips, how-to video library, DTC analysis and programming, 16/5MP front and rear camera, and intelligent diagnostic functions make the MaxiSys ultra a hybrid of auto diagnostic scanners.

Key Features of The Autel MaxiSys Ultra

  • Screen: 12.9 inches and a 2732x2048 LCD screen
  • Battery: 18,000 MAH (8hrs+ operation)
  • 5-in-1 VCMI
  • Repair tips and videos
  • 99% vehicle compatibility
  • ECU (Electronic control unit) programming and coding
  • 40+ auto services
  • Memory: 4GB/256GB
  • Processor: 2.3GHz + 1.7GHz Octa-Core Processor
  • Operating system: Android 7.0 OS
  • Cost: $4,899.

Now that we have covered the important details and key features of the Autel MaxiSys series trio, let’s compare the three products to see which auto diagnostic scanner is the best.

Autel MaxiSys Ultra vs MS919 vs MS909

To compare the three scanners, we’ll use their features and functions to see which auto scanner comes out on top. Here is a chart that identifies the major differences between the MS909. MS919, and MS ultra:




MS Ultra

Screen size

9.7 inches

9.7 inches

12.9 inches

Display resolution

2048x1536 DPI

2048x1536 DPI

2732x2048 DPI

Battery capacity

15,000 MAH

15,000 MAH

18,000 MAH

Storage and memory




Troubleshooting and repair assist


Better than MS909

Better than MS909

VCMI feature

Doesn’t have a VCMI feature  

Designed with a 5-in-1 VCMI function

Designed with an advanced 5-in-1 VCMI function


36+ services

36+ services

40+ services

Docking station









Next, let’s check out these features in detail and compare the three diagnostic tools vividly.

Screen Size and Display Resolution

The MS909 and MS919 have similar screen sizes and display resolutions. Both Autel scanners are designed with a 9.7-inch LCD screen and 2048x1536 DPI (dots per inch) display resolution. The MS Ultra on the other hand features a larger screen size at 12.9 inches and better display resolution at 2732x2048 DPI (dots per inch).

All three scanners have an LCD touchscreen design but the MaxiSys ultra offers a unique split screen feature that allows the user to run multiple programs on the scanner simultaneously on the same screen. The MS909 and MS919 don’t have this feature.

Verdict: The MaxiSys Ultra wins this round. It features a bigger screen size, improved display resolution, and a split screen feature that MS909 and MS919 don’t have.

Battery Capacity

The MS909 and MS919 are designed with a 15,000 MAH battery capacity and 8 hours of continuous running time. The MS ultra has a stronger 18,000 MAH battery capacity and can operate for over 8 hours without seizing. Autel also designed the MS ultra with a docking device that powers the scanner and allows for uninterrupted usage. The MS909 and MS919 don’t have a docking device and will shut off after 8 hours.

Verdict: When it comes to the battery, the MS ultra edges over the MS919 and MS909 due to improved battery capacity and a docking device for continuous operation.

Storage and Memory

The MaxiSys ultra is designed with 4GB RAM and 256GB SSD storage space. This allows for the scanner to store and display information faster. You can even save and upload the diagnostic results of your vehicle to your Autel cloud easily with the MS ultra due to the improved RAM and storage space.

The MS909 and MS919 Autel diagnostic scanners also have 4GB RAM but reduced storage space. Both scanners are equipped with 128GB SSD.

Verdict: The MS Ultra has more advanced storage space than the MS919 and MS909.

Auto Diagnostic Functions

The trio of Autel MaxiSys diagnostic tools are all used for auto diagnostic functions but the MS ultra and MS919 have improved diagnostics than the MS909. This is because the MS919 and MS ultra have a 5-in-1 VCMI feature. The VCMI feature combines VCI, multimeter, Waveform generator, Oscilloscope, and OBD2 features to offer you the best auto diagnostic experience.

The presence of the VCMI in MS Ultra and MS919 makes the tool able to carry out accurate diagnostic functions on 99% of vehicles made between 1996 and 2022. You also have access to software component testing and CAN BUS tester with the MS919 and MS Ultra.

Verdict: The MS Ultra and MS919 have improved diagnostic functions than the MS909 due to the 5-in-1 VCMI feature.

Repair Assist

The MS909 features standard-level repair assist features but this is inferior to the repair assist offered by the MS919 and MS Ultra. The MS ultra and MS919 due to the presence of a 5-in-1 VCMI feature offer step-by-step repair assist functions, software component tests, how-to videos, and a 1-click oscilloscope function. You also get to enjoy a library of relevant cases for proper diagnostic and repair assistance.

Verdict: The MS Ultra and MS919 offer more advanced repair assist features than the MS909.

Which Of The 3 Autel MaxiSys Series Should You Buy?

  • Best for large auto workshops: Autel MaxiSys Ultra
  • Cheapest:The MS909
  • Best diagnostic functions: Autel MaxiSys Ultra
  • Best for speed: Autel MaxiSys Ultra
  • Best For Repair Assistance: Autel MaxiSys Ultra and MS919

Final Words

Any of the three Autel diagnostic scanners would be a good addition to your auto workshop. The one you go for depends on your taste, needs, budget, and task size. If you want the best of the lot, the MS Ultra is your pick with its advanced functions, design, and features. The cost however can be a restriction which is why the MS919 is another good choice.

The MS919 has some similar features to the MS ultra one of which is the impressive 5-in-1 VCMI function. The MS909 should be reserved for small to basic diagnostic tasks as it doesn’t have some of the sophisticated features of the MS919 and MS ultra.


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