OBD2 Heads Up Displays: The Best Way to Monitor Your Car’s Performance and Stay Safe

Car head-up displays (HUDs) are no longer a futuristic fantasy; they’re becoming increasingly popular for everyday drivers. While standard HUDs offer a range of benefits, Obd2 Heads Up Displays take it a step further by tapping directly into your car’s onboard diagnostic system. This provides a wealth of real-time data, not just for convenience, but also for a deeper understanding of your vehicle’s health and performance. If you’re looking to enhance your driving experience and stay informed without taking your eyes off the road, an OBD2 HUD might be the perfect upgrade.

But with so many options on the market, choosing the right OBD2 heads up display can be overwhelming. We’ve rigorously tested a variety of HUDs, focusing on those that utilize the OBD2 port, to bring you a curated list of the best choices available. We’ve evaluated them based on data accuracy, display clarity, ease of use, and overall value, ensuring you get a device that’s truly worth your investment.

Whether you’re a tech enthusiast, a performance driver, or simply someone who values safety and information, our guide to the best OBD2 heads up displays will help you find the ideal device to transform your driving experience.

1. Hudway Drive: The Premium OBD2 HUD with Comprehensive Data Integration

Hudway Drive on dash

Alt text: Hudway Drive OBD2 heads up display projecting driving data onto a transparent screen mounted on a car dashboard.

Expert Review: Hudway Drive Review

Specifications:

• Size: 7.3 x 6.3 x 4.0 inches
• Weight: 9.0 ounces
• Power: 12-volt accessory outlet
• Display size: 1.8-inches
• Color/Monochrome: Color
• Number of parameters displayed: 11
• Alarms: Yes

Reasons to Buy:

• OBD2 and Smartphone Integration: Seamlessly combines data from your car’s OBD2 port, GPS, and smartphone for a holistic driving information display.
• Self-Contained Projection Screen: Includes a dedicated projection screen, ensuring clear visibility in various lighting conditions and preventing windshield reflection issues common with projection-based HUDs.
• Extensive Data Parameters: Displays a wide range of OBD2 data, including speed, RPM, engine temperature, voltage, and turn-by-turn navigation from your phone.
• User-Friendly Interface: Offers an intuitive interface for easy customization and data selection.

Reasons to Avoid:

• Price: One of the more expensive OBD2 HUDs on the market.
• Size: Larger footprint may be noticeable on some dashboards.

The Hudway Drive stands out as a top-tier OBD2 heads up display due to its comprehensive data integration and user-friendly design. By connecting to your car’s OBD2 port, it delivers accurate, real-time vehicle diagnostics and performance metrics directly in your line of sight. This is invaluable for monitoring engine health and driving efficiency. While it comes at a higher price point, the wealth of information and seamless integration justify the cost for drivers seeking a premium OBD2 HUD experience.

Read our full Hudway Drive review

2. Pyle PHUD180BD: High-Value OBD2 HUD with Bright Display

Pyle-PHUD180BD on dash

Alt text: Pyle PHUD180BD OBD2 display showcasing vehicle speed and engine parameters on a car dashboard, connected via OBD2 port.

Expert Review: Pyle PHUD180BD Review

Specifications:

• Size: 5.3 x 3.0 x 0.5 inches
• Weight: 4.4 ounces
• Power: OBD2 port
• Display size: 5.5-inches
• Color/Monochrome: Color
• Number of parameters displayed: 14
• Alarms: Yes

Reasons to Buy:

• Affordable OBD2 Functionality: Provides OBD2 data display at a very competitive price point.
• Bright and Large Display: Features a vibrant 5.5-inch screen that ensures excellent readability, even in direct sunlight, making it ideal for displaying crucial OBD2 information.
• Extensive OBD2 Data Readouts: Displays a wide array of OBD2 parameters, including speed, RPM, coolant temperature, battery voltage, fuel consumption, and more.
• Self-Contained Screen: Utilizes its own screen, avoiding windshield projection issues.

Reasons to Avoid:

• No Phone Integration: Lacks smartphone connectivity for navigation or call notifications.
• Screen Obstruction: Projection screen, while effective, might slightly obstruct the driver’s view for some users.

The Pyle PHUD180BD is a standout choice for those seeking an affordable yet feature-rich OBD2 heads up display. Its ability to access and display a significant amount of OBD2 data makes it a valuable tool for monitoring vehicle performance and potential issues. The bright display and easy OBD2 connectivity enhance its practicality. For drivers prioritizing OBD2 functionality without breaking the bank, the Pyle PHUD180BD offers exceptional value.

Read our full Pyle PHUD180OBD review

3. Wiiyii C1 OBD + GPS: Versatile OBD2 HUD with Performance Metrics

Wiiyii OBD + GPS Head Up Display on dash

Alt text: Wiiyii C1 OBD and GPS heads up display showing real-time car diagnostics and speed data on a dashboard screen.

Expert Review: Wiiyii C1 OBD + GPS Review

Specifications:

• Size: 4.3 x 5.0 x 3.5 inches
• Weight: 4.4 ounces
• Power: 12-volt accessory outlet
• Display size: 1.8-inches
• Color/Monochrome: Color
• Number of parameters displayed: 15
• Alarms: Yes

Reasons to Buy:

• OBD2 and GPS Data Combined: Integrates both OBD2 data for vehicle diagnostics and GPS for speed and location, offering comprehensive driving information.
• Performance-Oriented Data: Displays advanced OBD2 metrics such as air-to-fuel ratio and turbocharger pressure, appealing to performance enthusiasts.
• OBD Fault Code Scanning: Can read and display OBD2 fault codes, allowing for quick identification of potential vehicle issues.
• Self-Contained Projection Screen: Ensures clear data projection and avoids windshield glare.

Reasons to Avoid:

• No Phone Integration: Lacks smartphone connectivity.
• No Navigation: Does not offer turn-by-turn navigation.

The Wiiyii C1 OBD + GPS is designed for drivers who want more than just basic speed and time display. Its strength lies in its ability to present detailed OBD2 data, including performance metrics that are particularly interesting to car enthusiasts. The inclusion of OBD fault code scanning is a significant advantage for proactive vehicle maintenance. If you’re interested in monitoring your car’s performance parameters and want OBD2 diagnostics at your fingertips, the Wiiyii C1 is an excellent and affordable choice.

Read our full Wiiyii C1 OBD + GPS review

4. Akabane A500: Feature-Packed OBD2 HUD with Performance Testing

Dagood A8 on dash

Alt text: Akabane A500 OBD2 car heads up display projecting vehicle information clearly on a dashboard mounted screen.

Expert Review: Akabane A500 Car Heads Up Display Review

Specifications:

• Size: 4.3- x 3.3- x 2.9-inches
• Weight: 5.1 ounces
• Power: OBD-II port
• Display size: 3.5-inches
• Color/Monochrome: Color
• Number of parameters displayed: 60
• Alarms: Yes

Reasons to Buy:

• Extensive OBD2 and GPS Data: Combines OBD2 diagnostics with GPS data for a wide range of information.
• Performance Testing Features: Unique ability to test braking and acceleration performance, offering valuable insights for performance drivers.
• Direct View Display: Provides a clear and direct view of the display without projection, which some drivers may prefer.
• Numerous Display Parameters: Boasts an impressive number of displayable parameters, giving users a wealth of data options.

Reasons to Avoid:

• Design: Some may find the design to be less sleek or “clunky.”
• Interface Complexity: Menu settings can be somewhat confusing to navigate.
• Screen Size: 3.5-inch screen is smaller than some competitors.

The Akabane A500 distinguishes itself with its performance testing capabilities, in addition to providing comprehensive OBD2 and GPS data. The ability to measure braking and acceleration adds a unique dimension for drivers interested in vehicle performance metrics. While the design might not be the most streamlined, and the interface can be a bit complex, the sheer amount of data and features, especially at its price point, make the Akabane A500 a compelling OBD2 HUD for data-driven drivers.

Read our full Akabane A500 review

What to Look for in an OBD2 Heads Up Display

When choosing an OBD2 heads up display, consider these key factors to ensure you select the best device for your needs:

• OBD2 Data Parameters: The primary advantage of an OBD2 HUD is its access to vehicle diagnostic data. Look for models that display the OBD2 parameters most relevant to you. Common parameters include:

  • Speed (MPH/KPH): A standard and essential display.
  • Engine RPM: Useful for monitoring engine performance and efficiency.
  • Coolant Temperature: Critical for preventing engine overheating.
  • Battery Voltage: Indicates the health of your car’s battery and charging system.
  • Fuel Consumption/Economy: Helps you drive more efficiently.
  • Turbo Boost Pressure (for turbocharged vehicles): Performance metric for turbo engines.
  • Air-to-Fuel Ratio: Advanced parameter for engine tuning and performance monitoring.
  • OBD Fault Codes: Essential for diagnosing vehicle problems.

• Display Clarity and Brightness: The display should be easily readable in various lighting conditions, from bright sunlight to nighttime driving. Consider:

  • Brightness Adjustment: Automatic or manual brightness adjustment is crucial for optimal visibility.
  • Color Display: Color displays can enhance readability and allow for better organization of information.
  • Screen Size and Type: Choose a size that is comfortable to view without being obstructive. Projection screens or direct view screens are available, each with pros and cons regarding viewing angle and clarity.

• Ease of Installation and Use: OBD2 HUDs are designed for relatively simple installation, typically plugging directly into your car’s OBD2 port. However, consider:

  • Plug-and-Play Setup: Ensure the HUD offers a straightforward plug-and-play installation.
  • User Interface: A user-friendly menu and control system are essential for easy customization and data selection.
  • Cable Management: Consider how the power cable will be routed and concealed for a clean installation.

• Additional Features: Beyond OBD2 data, some HUDs offer extra features that can enhance their value:

  • GPS Integration: Provides speed, location data, and sometimes navigation.
  • Smartphone Integration: Allows for displaying notifications, calls, and navigation from your smartphone.
  • Alarms and Warnings: Configurable alarms for parameters like over-speeding, high coolant temperature, or low battery voltage.
  • Performance Testing: Features like acceleration and braking tests can be valuable for performance enthusiasts.

• Power Source: Most OBD2 HUDs draw power directly from the OBD2 port or a 12V accessory outlet. Consider the power source and cable length to ensure it fits your car’s setup.

• Price and Value: OBD2 HUDs are available at various price points. Balance the features and performance against the cost to find the best value for your needs.

By carefully considering these factors, you can select an OBD2 heads up display that not only enhances your driving experience but also provides valuable insights into your vehicle’s performance and health.

How Much Do OBD2 Heads Up Displays Cost?

The cost of OBD2 heads up displays varies widely depending on features, display quality, and brand.

• Budget-Friendly Options (Under $50): You can find basic OBD2 HUDs for under $50. These may offer essential OBD2 data like speed, RPM, and basic engine parameters. However, display quality and features might be limited.

• Mid-Range Options ($50 – $150): This price range offers a good balance of features and quality. You’ll find OBD2 HUDs with color displays, a wider range of OBD2 parameters, GPS integration, and better build quality. Most of the models reviewed in this guide fall into this category.

• Premium Options ($150 and Above): Premium OBD2 HUDs, like the Hudway Drive, offer the most comprehensive features, including smartphone integration, advanced displays, and superior build quality. These are for users seeking the ultimate HUD experience with all the bells and whistles.

For most drivers looking to benefit from OBD2 data display, a mid-range option will provide the best balance of features and value.

How We Test OBD2 Heads Up Displays

Our testing process for OBD2 heads up displays is rigorous and focuses on real-world usability and data accuracy. We evaluate each device through these key stages:

1. Initial Setup and Installation: We assess the ease of installation, ensuring the OBD2 HUD is truly plug-and-play. We evaluate the clarity of instructions and the simplicity of cable management. We also check for secure mounting on the dashboard.

2. Data Accuracy and Responsiveness: A critical aspect is the accuracy of the OBD2 data displayed. We compare the HUD’s readings for speed, RPM, and other parameters against the car’s dashboard and, when possible, against professional diagnostic tools to ensure accuracy and real-time responsiveness.

3. Display Performance in Various Conditions: We test the display’s visibility under different lighting conditions, including bright sunlight, overcast days, and nighttime driving. We assess the effectiveness of brightness adjustments and the clarity of the display.

4. User Interface and Customization: We evaluate the user-friendliness of the menu system and controls. We test how easy it is to navigate settings, select desired OBD2 parameters for display, and customize alarms.

5. Feature Testing: We thoroughly test all advertised features, including GPS functionality, smartphone integration (if applicable), OBD fault code reading, and any performance testing features.

6. Real-World Driving Experience: We use each OBD2 HUD in daily driving scenarios to assess its practicality and usefulness in real-world conditions. We evaluate how effectively it keeps critical information in the driver’s line of sight and whether it enhances or distracts from the driving experience.

7. Durability and Build Quality: While not explicitly a long-term durability test, we assess the build quality and materials of each HUD to get an impression of its robustness and expected lifespan.

Through this comprehensive testing process, we aim to provide you with reliable and insightful reviews to help you choose the best OBD2 heads up display for your car and driving needs.