Autel MD909Pro vs Topdon AD900 Lite: Which Bluetooth Scanner Wins?

In 2025, auto diagnostic tools are rapidly developing. Autel isn't the only brand to update and upgrade its OBD2 scanners, releasing numerous new models. Other auto diagnostic tool brands, such as Topdon, Launch, and Foxwell, have also upgraded and updated their scanners.

The entire diagnostic scanner industry is moving towards better and more convenient solutions. While this provides consumers with more choices, it also creates indecision for those struggling with indecision.

Today, we'll compare two of the latest Bluetooth scanners released in 2025 from the Autel and Topdon brands: the Autel MD909Pro and the Topdon AD900 Lite. We'll comprehensively compare key features, including hardware configuration and software features, to determine the scanner that's best for you.

Autel MD909Pro vs Topdon AD900 Lite

Brief Introduction

What is the Autel MD909Pro?

The Autel MD909Pro is a new Bluetooth OBD2 scanner launched by Autel in 2025. Equipped with a quad-core processor and Android 9.0 operating system, the MD909Pro offers a smoother diagnostic process.

Furthermore, the MD909Pro supports full system diagnostics, including 11 common reset services. It also features a buzzer and other warning devices, a Bluetooth VCI, and supports the CAN FD protocol.

Autel MaxiDiag MD909 Pro

$329.00

2025 Newest Professional Scan Tool | Enhanced Mode 6 Diagnostics | All System AutoScan | Support 11 service functions | Support OBDII protocols & all 10 OBDII test modes

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What is the Topdon AD900 Lite?

The Topdon AD900 Lite also underwent some upgrades in 2025. This eight-inch flatbed scanner supports full-system diagnostics and bidirectional control. It also supports eight service functions, including oil reset, brake reset, SAS reset, and BMS reset. It also comes with two years of free software upgrades.

Autel MD909Pro vs Topdon AD900 Lite: Comparison Table

Basic	Item	Autel MD909 Pro	Topdon AD900 Lite
	Image
	Price	$329.00	$314.99
Hardware	Processor	Quad-core processor (1.5 GHz)	Not mentioned
	Screen	5.5-inch	8-inch
	Resolution	1280 x 720	1280 x 800
	Battery	5000mAh	10000mAh
	Memory	2 GB RAM & 64 GB ROM	2 GB RAM & 32 GB ROM
	Connectivity	Wi-Fi USB Type-C Bluetooth	Bluetooth 5.0/SPP USB Wi-Fi
	VCI	V150 Lite	VCI
Software	Operating System	Android 9.0	Android 11.0
	Vehicle System Support	All System	All System
	Read and Clear Codes	✔	✔
	Live Data	✔	✔
	Freeze Frame	✔	✔
	I/M Readiness	✔	✔
	Bi-directional Control	✘	✔
	Vehicle Coverage	Asia, Europe, America, China	Asia, Europe, America, China
	Security Gateway	FCA, SFD, etc	/
	CAN FD	✔	/
	Update	Lifetime of tool	2 Years Free
Service Functions	Oil Reset	✔	✔
	EPB	✔	✔
	TPMS	✔	✘
	BMS	✔	✔
	DPF	✔	✔
	SAS	✔	✔
	Throttle	✔	✔
	AFS Headlamp	✔	✘
	Brake Bleeding	✔	✔
	Injector	✔	✘
	SRS	✘	✔
	A/F	✔	✘
Extended Functions	Battery Test	Optional BT506	Optional BTMobile Pros

Autel MD909Pro vs Topdon AD900 Lite: Key Differences

Hardware Differences

1. Screen Size and Resolution: The MD909Pro has a smaller screen, but it's still a large screen for a handheld device. This also means it's more portable, but it's undeniable that some people do prefer a larger screen.
2. Memory: MD909Pro has a larger memory, which means it can store more data and run more programs at the same time. It can save your diagnostic records and help you solve more car problems.
3. Processor: The MD909Pro is equipped with a quad-core processor, which means it runs much faster, can handle multiple tasks simultaneously, and improve your work efficiency. I searched the official website for information on the Topdon AD900 Lite's processor but couldn't find any information on it.
4. Appearance: Their appearances are quite different. One is a handheld scanner, and the other is a flatbed scanner. The MD909Pro is more portable as a handheld scanner, while the AD900 Lite is a flatbed scanner that is larger and clearer.

MD909Pro hardware configuration

Software Differences

1. Bi-directionl Control: Topdon AD900 Lite supports bidirectional control, but MD909Pro does not, which means that AD900 Lite can improve the efficiency of diagnosis to a certain extent.
2. Support Protocols: The MD909Pro supports the CAN FD communication protocol and secure gateway expansion. This means it covers a wider range of vehicles and is more targeted at modern and future vehicles. However, the Topdon AD900 Lite's official website does not specify whether it supports this protocol.
3. Software Update: MD909Pro supports lifetime free software update service, which is more suitable for long-term investment, more economical and cost-effective. You can enjoy all software services without paying any additional fees.

Service Function Differences

MD909Pro supports more services, which means you can get a wider range of uses. It supports three more service reset functions than Topdon AD900 Lite: AFS Headlamp, TPMS, and Injector.

Autel MD909Pro Reset Functions

Autel MD909Pro vs Topdon AD900 Lite: How to Choose?

• Choose Autel MD909Pro: If you prefer a compact and portable handheld scanner and need several other service functions that the Topdon AD900 Lite does not have, and your car uses the CAN FD communication protocol, the MD909Pro will be a very cost-effective choice for you.
• Choose Topdon AD900 Lite: If you prefer a flatbed scanner, need two-way control, feel that the service functions it provides are sufficient for your daily use, and don't mind the paid update service after two years, then the Topdon AD900 Lite will be your best choice.

Conclusion

The Autel MD909Pro and Topdon AD900 Lite are both the best Bluetooth OBD2 scanners of 2025. They have both been upgraded from their previous generation scanners to support full-system diagnostics, and are more in line with the needs of convenient diagnostics in modern life. Therefore, whichever one you choose will be the best choice, it all depends on your needs.