Foxwell BT780 Review

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When it comes to automotive diagnostics, the Foxwell BT780 is tough competition. It’s a full-function scan tool with most of the common tests built-in. This includes engine and transmission testing. You might find this odd considering it’s not a mechanic. 

But you can use it to see what’s going on with your car and make an educated decision when you take it in for maintenance or repair. Furthermore, the Foxwell BT780 scanner comes with installation instructions so you can start using it ASAP. 

Simply plug the adapter cable into your car, and press connect on both devices. And today, I’ll explain this scanner in my Foxwell BT780 review. So. let’s start!

Foxwell BT780 Review

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I have used it for the past 3 months and it has worked flawlessly. It is easy to use. Bluetooth connectivity ensures that the latest software is readily accessible.  You can download your USB updates when they need them. 

This scanner is a great tool to have in your garage. I like the Bluetooth connectivity feature so you can download updates directly to this unit. It is capable of scanning most cars on the road. The only possible downside is it’s hard to read the Foxwell screener under direct sunlight, but this is a small issue.

The BT780 comes with a few more options than many of its similarly-priced counterparts. It has been targeted toward those with full diagnostic capabilities. Also, you can handle more advanced work. It is perfect for DIY mechanics who will be interested in some of its basic diagnostic abilities.


  • Good build quality
  • Bluetooth connectivity for software updates
  • USB port for downloading updates 
  • Ability to read and clear both generic and manufacturer-specific codes
  • Reads and clears the engine


  • It may run hot and become over-sensitive to high temperatures.

Main Features

Here are the main features of this scanner for you to have a quick look at.

1. Battery analyzer

The BT780 has a built-in battery load tester that works with engines on or off and can check the battery capacity. This is very useful for testing new and old batteries as well as checking battery capacity.

2. Diagnose 

The BT780 can perform diagnostics on all aspects of a vehicle’s operation and can even check for common problems such as misfires, bad sensors, and other issues. The system can be used to read or clear codes and scan for trouble codes when necessary. 

Diagnostics performed by the device will cover most areas of your vehicle. It should include a warning light checker for when lights come on unexpectedly.

3. Display

The screen on the BT780 is much larger than many competing devices and offers high resolution for better viewing of the data collection. The backlit screen makes it easy to see even in direct sunlight and will let you easily read your results when necessary.

4. Bluetooth connectivity

You can connect Bluetooth with your smartphone once the device is running, allowing you to download updates directly from Foxwell without needing replacement discs or going to a dealership.

5. Automatic update

The BT780 uses Direct Plug-In Technology, but unlike many other manufacturers, it has an automatic updating system that allows you to download updates from Foxwell’s website and even offers an option for use with your smartphone. This means you only have to purchase the scanner once and will receive free updates as necessary.

Advanced Features

This powerful device boasts an array of impressive features, including advanced diagnostic, Multiple rating system, and more. Let’s know them one by one!

1. Multiple rating system

The BT780 uses a 3-level rating system for the diagnostic results, and will also give you recommendations for what you should do about any issues that are found. This makes it much easier to understand the results of scans and quickly see when something needs fixing.

2. Built-in thermal printer

The BT780 has a built-in thermal printer that can be used to output results directly to a printer. This is useful for quickly analyzing the results of scans and also gives you a way to make sure you haven’t forgotten any details by checking against the printout.

3. Ripple voltage tests

The unit can test the condition of the battery’s ‘Ripple Voltage’ and will display this information for each cell. This is useful for verifying whether your battery has been over-charged or discharged and can help ensure you are getting a more reliable charge than many other systems.

ComparisonbBetween Foxwell BT780 Scanner and Foxwell NT301 Plus scanner

Brand Display Languages supported Updates Connectivity Warranty
Foxwell BT780 4.3-inch TFT color screen Multiple Lifetime free updates via USB cable USB cable 1 Year
Foxwell NT301 Plus 2.8-inch TFT color screen Multiple Lifetime free updates via USB cable USB cable 1 Year


What types of vehicles is the Foxwell BT780 compatible with?

The Foxwell BT780 is compatible with a wide range of vehicles, including cars, SUVs, light-duty trucks, and hybrids. It supports most OBD1 and OBD2 protocols, as well as 10 test modes of the OBD2 scanners.

Is the Foxwell BT780 easy to use for beginners?

Yes, the Foxwell BT780 is designed with user-friendliness in mind and features an intuitive interface and clear instructions. It also comes with a comprehensive user manual and online support resources to help beginners get started.

How does the Foxwell BT780 compare to other diagnostic tools on the market?

The Foxwell BT780 is a highly advanced diagnostic tool that offers an impressive range of features, including a large color screen, fast processing speed, and wide vehicle coverage. It is also designed to be user-friendly and comes with free lifetime software updates, making it an excellent choice for both professionals and DIY enthusiasts.


The BT780 is also easy to use, thanks to its intuitive interface and large 7-inch color touchscreen display. It comes with a durable carry case, making it easy to transport and store, and it offers wireless Bluetooth connectivity for easy data transfer to a PC or mobile device.

Overall, the Foxwell BT780 is a powerful diagnostic tool that offers comprehensive coverage and advanced features. While it may be more expensive than some other diagnostic tools, its wide range of functions makes it a great investment for professionals.

Don’t know about its features? Scroll up and check Foxwell BT780 Review again.

Foxwell BT780 Battery Tester being tested on a dead lead acid battery.
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