Home » Code Readers & Scan Tools » Foxwell NT644 Pro: Full System Automotive Scan Tool Review

Foxwell NT644 Pro: Full System Automotive Scan Tool Review

Isn’t it a relief to have a tool that can scan your vehicle and let you know a specific problem onboard?

That is why most mechanics and car owners go for the OBDII Onboard Diagnostics scanner.

I personally have used the Foxwell NT644 Pro, and I will be giving my thoughts about it.

The Foxwell NT644 OBDII Pro is developed to diagnose almost every car system. However, it is one of the most expensive OBD tools I have used. I can say the diagnosis offered by this tool is typically accurate.

Let’s have a detailed review of the diagnostic tool.

Foxwell NT644 Pro Overview

The Foxwell NT644 is developed to diagnose almost every car system.

Foxwell NT644
Foxwell NT644 Pro Automotive Diagnostic Tool
4.44.4 / 5
Its ease-of-use makes it a good DIY tool. On the other hand, the extra functionalities make it a good choice for mechanics.

However, it is one of the most expensive OBD tools I have used.

I can say the diagnosis offered by this tool is typically accurate. Furthermore, I had an easy time using it.

What I’m saying is that the tool is not complicated to use. I think any car owner can use it.

But you need to understand the readings and know how to interpret them.

Nevertheless, it does have some shortcomings that I will mention in the article.

FOXWELL NT644 Detailed Review


One thing that I liked about this scan tool is that it is a Plug-N-Play type of tool. As soon as you plug it into the OBD port in your car, it will display the features accordingly.

The features and functions are also well-arranged for easy accessibility.

Foxwell NT644 is an Automotive Diagnostic Tool that provides diagnosis on more than 61 American, Asian and European car manufacturers
Foxwell NT644 is a Plug-N-Play type of tool

Once you click on the Enter button, it will automatically connect to your engine. The buttons are also quite responsive.

Diagnostic Functions

What I liked about the tool is that it can reset the oil light, as well as read and clear error codes from most systems on the vehicle.

I used it to diagnose the Engine Control Unit, traction control, transmission, entertainment, Tire Pressure Monitoring System, navigation, and stability control systems.

Foxwell NT644 one of the best diagnostic tool that supports the most commonly used services
Foxwell NT644 offers All-System diagnosis functions.

By the way, I was also able to view live data with this tool. The Diesel Particulate Filter and battery configuration features are other unique features that are in this tool.

Bonus: FOXWELL NT630 Plus Automotive Diagnostic Scanner Review

Universal Coverage

Foxwell claims that this tool can work on every car models. I don’t know about that, but I think it can work on the majority of US-made cars.

We have used it on a Ford, Chrysler, Chevrolet, and GM.

It worked well on all these cars, so I think it can read and clear the codes on other US-made vehicles.

However, it doesn’t work with Volvo 2013 XC60, which isn’t a good thing.

Other Functionalities

Another thing that I liked about the Foxwell NT644 Pro is the extra functions that it delivers.

For instance, it has the Electric Parking Brake (EPB) Service that lets you perform diagnostics on the brake system.

The Steering Angle Sensor (SAS) feature lets you calibrate the Steering Angle Sensor.

Well, the EPB service might be a little faulty. Other features include the TPS and brake scanner.

Foxwell NT644 is an affordable professional diagnostic tool
Foxwell NT644 supports several special functions.

The tool automatically retrieves the VPN when you want to connect it to the internet. Though you can also enter the VPN manually.

It might be a decent scan tool, but I didn’t like the need for a constant software upgrade. Furthermore, you cannot update the software directly with the USB cable.

Foxwell NT644 is a powerful OBD II code reader that offers LIFE-TIME Internet Free Update.
Foxwell NT644 supports lifetime free upgrade online.

The 8GB memory stick that comes with the Foxwell NT644 Pro happens to be too small when you want to update the software.

By the way, the tool offers live graphing too, which I think can be useful for mechanics.


  • The live data feature lets you view most data, even the wheel speeds
  • The keypad on the tool is easy accessible {and well-arranged} for easy usage
  • It starts running as soon as you connect it to your car
  • The rugged sides mean that it will not slip off your hands as you use it
  • The Foxwell NT644 Pro can do graphs too
  • You can connect it to the internet to upgrade the vehicles, parameters, and bug fixes.


  • It may not work with some vehicles, like Volvo
  • You cannot update the software directly with the USB cable

FOXWELL NT644 vs NT624 Pro vs and Innova 3160g Comparison Chart 

All these scan tools will perfectly work on most car models. However, the Foxwell NT644 Pro has an upper hand compared to the three.

It is the only model, among the three, which can deliver car battery configuration and Diesel Particulate Filter functions.

However, keep in mind that you will need to upgrade the software frequently for it to function effectively.

Foxwell NT644 Pro
FOXWELL AutoMaster NT644 Pro
FOXWELL NT624 PRO Professional Automotive Obd2 Scanner
INNOVA 3160g
INNOVA 3160g Diagnostic Scan Tool
Customer Rating
3.53.5 / 5
3.93.9 / 5
4.24.2 / 5
PriceFOXWELL NT644 priceFOXWELL NT624 PRO priceINNOVA 3160g price
ProsAll-System diagnosis;
Live Sensor Data;
EPB, DPF, and Car Battery Configuration Service included;
Throttle Body Alignment;
ABS Brake Bleeding;
Offers LIFE-TIME Internet Free Update.
Performs Full-OBDII Tests Modes and All-System Diagnosis;
Retrieves ECU information;
Offers LIFE-TIME Internet Free Update.
Excellent Scanner for Engine, ABS, SRS for OBD2 Vehicles from US, Asian and EU.
Connection and Compatibility issues (should check carefully before buying)No EPB, DPF, and Car Battery Configuration Service included;
No Throttle Body Alignment;
May not support all ABS European Codes; Poor customer service.
Bottom LineWheather you're a mechanic or an experienced enthusiasts, FOXWELL NT644 suits you.Foxwell NT624 PRO suits beginner mechanics and experienced enthusiasts.Innova 3160g is an excellent Innova Scan Tool for experienced enthusiasts or beginner mechanics.

Who is Foxwell NT644 Built for?

Whether you are an average car owner that wants to know the detailed condition of your vehicle, or you are a mechanic with further experience, the tool will serve you well.

Its ease-of-use makes it a good DIY tool.

On the other hand, the extra functionalities make it a good choice for mechanics.

The Bottom Line

So, is the Foxwell NT644 Pro a reliable OBDII tool? I think it is. This is a decent diagnostic tool that will handle almost every system in your car.

Furthermore, it can work with most car models on the US market. Of course, it does have some shortcoming, but I still think it is a decent product to buy.

The price might be too high, especially if you compare it to the previous version Foxwell NT644.

Luckily, it supports 16 languages, which include English, Spanish, Polish, German, French, and more. Also, it offers more services if you compare it to other Foxwell products.

Another major concern is that Foxwell doesn’t have such good customer support. They take too long to respond, and they can even fail to solve your problem.

Bonus: FOXWELL NT624 Pro OBD2 Scanner Review

Tim MillerFounderOBD Advisor

I’m Tim Miller from Denver, Colorado. I’m the founder of obdadvisor.com, an automotive blog about "Diagnostic Tools and Auto Repair". My fan page is facebook.com/autozikcom. I've been working as an automotive mechanic and blogger for over 10 years writing articles to share my experiences and expertise.

Web: https://www.obdadvisor.comEmail: [email protected]
Follow me:

18 thoughts on “Foxwell NT644 Pro: Full System Automotive Scan Tool Review”

  1. Hi Tim,

    I am interested in the FOXWELL AutoMaster NT644 PRO. I am just trying to find out id it can communicate vehicles that are made for the Japanese domestic market (JDM), that ate made with the Japanese on-board diagnostic (JOBD) prorocol.


  2. Gday,
    Can this scanner still read newer vehicles after 2017? If they are not listed in the car data base, can they still be read via the obd2 section of the tool?

    Great article thanks

  3. Why do some FOXWELL NT644 Automaster models offer a lot of extra connections in the kit whilst the NT644 Pro doesn’t.If updates are available free then shouldn’t this model cover Australian built cars as well as the other brands.Or are the extra connections made to fit all the different brands?

  4. Hi Tim
    Will this reset the ride height values, to enable me to Calibrate my air suspension on my 2000 Range Rover P38

  5. Tim,
    I like this NT644Pro best of all the smaller handheld scanners that I’m looking to purchase from Foxwell, but the only one I see that seems to have ABS brake bleeding capacity is the NT630 Elite. Is that true or can I do ABS auto brake bleeding on a 2007 Honda Accord with this model too?

  6. Hey in your pro’s and con’s you state that you have to pay for updates after 18 months but just above that it states free lifetime updates. Is there something I’m missing?

  7. Hi Tim
    Can I do transmission settings (like basic settings) on my vw golf 2001 automatic transmission (09A JF506E JATCO 5 speed tiptronic)?
    Thank you

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Click to Share