Unlock your car’s hidden data with the best Bluetooth OBD2 scanners of 2023. These wireless devices connect to your vehicle’s computer, providing instant access to vital information about its health and performance. If you’ve noticed a warning light or suspect an issue, a Bluetooth OBD2 scanner allows you to diagnose the problem yourself, saving you time and money on professional mechanic fees.
Navigating the world of OBD2 scanners can be overwhelming, especially for beginners. Having tested numerous OBD2 scanners, we’ve compiled a list of the top Bluetooth models available today. Below, we’ll explore our recommended scanners, explain how Bluetooth OBD2 scanners function, and decipher common error codes.
Among our top selections, the Topdon TopScan stands out for its seamless wireless connectivity and comprehensive diagnostic capabilities. For budget-conscious users, the Launch CR529 offers excellent value, while the Topdon Phoenix Lite 2 delivers professional-grade diagnostics for those seeking advanced features.
Here are our top recommendations for the best Bluetooth OBD2 scanners you can purchase right now.
Tom Pritchard
Tom is the UK Phones Editor at Tom’s Guide, covering mobile technology and apps. He’s also a passionate advocate for electric vehicles and automotive technology.
Top Bluetooth OBD2 Scanners: Quick Picks
Based on our hands-on evaluations, here are the best Bluetooth OBD2 scanners currently available. Continue reading for detailed reviews and insights into each product’s strengths.
Topdon TopScan: Best Mobile Bluetooth Scanner1. Topdon TopScan
The Topdon TopScan is the easiest Bluetooth scanner to set up and use, offering professional-level features in a compact, wireless design. It provides in-depth diagnostics, repair guidance, parts information, and even predictive analysis to anticipate potential issues.
Learn More Below
Ancel BD310: Best Dual-Purpose Bluetooth Scanner2. Ancel BD310
The Ancel BD310 excels as both a Bluetooth OBD2 scanner and a supplementary dashboard display. Its user-friendly design, smartphone compatibility, and affordable price make it a versatile choice.
Learn More Below
Carly OBD-II Scanner: Best Bluetooth Scanner with Companion App3. Carly OBD-II Scanner
The Carly OBD-II Scanner, paired with its exceptional companion app, offers extensive customization and professional-grade testing, particularly for VW, BMW, and Ford vehicles. Its app-centric approach delivers a rich user experience.
Innova CarScan Mobile 1000: Most Innovative Bluetooth Scanner4. Innova CarScan Mobile 1000
The Innova CarScan Mobile 1000 stands out as an innovative Bluetooth OBD2 scanner, inheriting Innova’s renowned features like predictive diagnostics in a completely wireless format, managed through your smartphone.
Learn More Below
ThinkCar ThinkDiag TKD01: Best Rugged Bluetooth Scanner5. ThinkCar ThinkDiag TKD01
The ThinkCar ThinkDiag TKD01, while larger than typical Bluetooth OBD2 scanners, is exceptionally durable. It offers a wide array of manufacturer-specific error codes and advanced fault-code clearing capabilities.
Learn More Below.
What are the advantages of Bluetooth OBD2 Scanners?
Why Trust Tom’s Guide? Our team of experts dedicates significant time to evaluating and reviewing products to provide you with the best recommendations. Learn more about our testing process.
Bluetooth OBD2 scanners offer numerous benefits, making them a popular choice for car owners:
Top Pick for Mobile Diagnostics
(Image credit: Topdon)
1. Topdon TopScan
Ideal for comprehensive vehicle analysis and performance tracking.
Read our expert review
Key Features:
Display/Size: None
Bluetooth/Handheld: Yes/No
I/M Readiness Test: Yes
Live Data Display: Yes
Keys: None
Warranty: 2 years
Dimensions: 3.2 x 2.0 x 1.1 inches
Weight: 2.6 ounces
Pros:
-
Broad diagnostic coverage
-
Real-time data monitoring
-
Performance metrics
-
Maintenance tracking
Cons:
-
Larger transmitter
-
Subscription needed for full features after one year
The Topdon TopScan redefines the capabilities of compact Bluetooth OBD2 scanners. Despite its unassuming appearance, this device delivers functionality far beyond standard Bluetooth modules. It surpasses competitors with advanced performance and efficiency checks, even estimating horsepower and torque – features rarely found in scanners at this price point.
Whether you aim to optimize your car’s performance or ensure its reliability, the TopScan is an invaluable tool. Its wireless Bluetooth connectivity simplifies usage, providing seamless data transmission to your smartphone or tablet.
Explore our detailed Topdon TopScan review
Best Dual-Function Bluetooth Scanner
Ancel BD310 (Image credit: Tom’s Guide)
2. Ancel BD310
A versatile Bluetooth OBD2 scanner that doubles as a car display.
Read our expert review
Key Features:
Display/Size: Color/2 inches
Bluetooth/Handheld: Yes/Yes
I/M Readiness Test: Yes
Live Data Display: Yes
Keys: 4
Warranty: 3 years
Dimensions: 5.1 x 2.4 x 0.6 inches
Weight: 5.4 ounces
Pros:
-
Lightweight and compact
-
Functions as scanner and car display
-
Bluetooth and handheld operation
Cons:
-
Minimalist interface
-
Small screen
The Ancel BD310 offers a unique dual functionality, serving as both a traditional handheld OBD2 scanner and a Bluetooth-enabled device that can mirror engine data on your smartphone. Its compact size makes it convenient to store in your glove compartment, ensuring it’s always accessible.
While the 2-inch screen is somewhat small and the four-button interface takes a little getting used to, these are minor drawbacks considering its versatility. The BD310’s 56-inch cable provides ample reach, and it performs essential diagnostics like I/M readiness checks and displays crucial performance metrics, including coolant temperature, engine timing, and speed.
Read our comprehensive Ancel BD310 review.
Top Bluetooth Scanner with Companion App
(Image credit: Carly)
3. Carly OBD-II Scanner
A powerful scanner whose value is amplified by its companion app.
Read our expert review
Key Features:
Display/Size: None
Bluetooth/Handheld: Yes/No
I/M Readiness Test: No
Live Data Display: Yes
Keys: None
Warranty: Lifetime
Dimensions: 2.9 x 1.5 x 0.7 inches
Weight: 0.7 ounces
Pros:
-
Intuitive app interface
-
Extensive customization
-
Real-time data
-
Maintenance and repair features
-
Lifetime warranty and updates
Cons:
-
Feature availability varies by car model
-
App subscription for full functionality
The Carly OBD Scanner distinguishes itself with an exceptionally user-friendly and feature-rich companion app. Unlike many Bluetooth scanners with basic apps, Carly delivers a premium app experience, offering extensive customization options and professional-level diagnostic tests.
Beyond basic error code reading, the Carly app provides repair assistance, used car checks, and a lifetime warranty. However, the full spectrum of features is car-dependent, with Volkswagen, BMW, and Ford models benefiting the most. A subscription is necessary to unlock advanced features beyond basic OBD functions, which may increase the overall cost.
Read our in-depth Carly OBD scanner review
Most Innovative Bluetooth OBD2 Scanner
4. Innova CarScan Mobile 1000
The Innova CarScan Mobile 1000 brings innovation to Bluetooth OBD2 scanners, integrating Innova’s respected predictive diagnostic capabilities into a wireless, smartphone-driven device. Its simple setup process and robust feature set make it a standout Bluetooth option.
Read our full Innova CarScan Mobile 1000 review
Best Rugged Bluetooth OBD2 Scanner
5. ThinkCar ThinkDiag TKD01.
While larger for a Bluetooth OBD2 scanner, the ThinkCar ThinkDiag TKD01 is built for durability. It offers extensive manufacturer-specific error codes and advanced fault code clearing, potentially resolving minor issues without needing a mechanic. A subscription fee applies after the first year.
Read our detailed ThinkCar ThinkDiag TKD01 review.
Frequently Asked Questions About Bluetooth OBD2 Scanners
What is a Bluetooth OBD2 Scanner?
Mechanics use diagnostic scanners plugged into your car’s OBD port to understand vehicle problems. Bluetooth OBD2 scanners perform the same function wirelessly, sending data to your smartphone or tablet via Bluetooth. These scanners read error codes, monitor systems in real-time, and predict potential issues. The Bluetooth connectivity offers convenience and flexibility in diagnostics.
What is the OBD-II Port?
The OBD-II (On-Board Diagnostics Version Two) port is standard in most vehicles sold in the US since 1996, and later in other regions. It’s the interface for accessing your car’s computer. Bluetooth OBD2 scanners, along with insurance trackers and dash cams, connect to this port. For port location guides, see North American cars and worldwide OBD-II/EOBD ports.
What is a DTC?
DTC stands for Diagnostic Trouble Code, an error code generated by your car’s OBD system when it detects a problem. Bluetooth OBD2 scanners interpret these codes, helping you identify issues. Standardized DTC codes are consistent across vehicles, while some manufacturers use unique codes.
Understanding DTCs:
DTCs may seem cryptic, but they follow a logical structure. The first letter indicates the system: Powertrain (P), Body (B), Chassis (C), or Network (N). The second character is 0 for generic or 1 for manufacturer-specific. The third character specifies the subsystem:
- 1: Fuel and air metering
- 2: Injector circuit fuel and air metering
- 3: Ignition system or misfire
- 4: Auxiliary emissions
- 5: Speed control and idle control
- 6: Computer auxiliary outputs
- 7, 8, 9: Transmission and gearbox
- A, B, C: Hybrid propulsion
The last two characters define the specific fault, from 0 to 99. Bluetooth OBD2 scanners translate these codes, with advanced models offering more detailed explanations. While there are over 5,000 possible DTCs, not all indicate critical problems; some may be minor warnings.
Choosing the Best Bluetooth OBD2 Scanner
For insights into your vehicle’s operation, Bluetooth OBD2 scanners are invaluable. They provide similar diagnostic capabilities to professional tools. When selecting a Bluetooth OBD2 scanner, consider these factors:
Key Criteria:
- Easy Setup: A quick and straightforward setup is essential for prompt diagnostics.
- Faults and Explanations: The scanner should clearly identify and explain fault codes for effective troubleshooting.
- I/M Readiness Check: Ensure it performs emissions tests to verify inspection readiness.
- Accuracy: Reliable results are crucial for accurate diagnoses.
- Compact Design: Portability and ease of storage are important for on-the-go use.
- Live Data: Real-time monitoring of engine parameters aids in identifying intermittent issues.
- Graphical Data: Visual representations like graphs enhance data interpretation.
- Warranty and Updates: Opt for scanners with robust warranties and software updates for long-term value.
When choosing, decide if Bluetooth connectivity is your priority for wireless operation and smartphone integration. Consider longevity with warranty and update availability. For ease of use, prioritize intuitive apps and clear data presentation. Additional features like manufacturer-specific codes or data export can also be beneficial. Bluetooth OBD2 scanners offer professional-level diagnostics at affordable prices, often less than a single mechanic’s service hour.
Our Bluetooth OBD2 Scanner Testing Methodology
To evaluate Bluetooth OBD2 scanners, we used a 2014 Audi A4 Allroad over several weeks. Each scanner was connected to the OBD-II port, verifying VIN reporting and Bluetooth pairing with an iPad Pro, Microsoft Surface, or Samsung Galaxy S9+.
We assessed wireless range and monitored engine performance and vital systems. To test fault detection, we simulated an issue by disconnecting the engine oil temperature sensor. We then evaluated the scanner’s ability to identify and explain the fault, clear the error code, and turn off the check engine light.
Road tests were conducted to assess live data display, including engine speed, timing, and coolant temperature, noting if data was presented numerically or graphically. This rigorous testing ensures our Bluetooth OBD2 scanner recommendations are reliable and effective.
