Garmin Dezl 780 vs 785: Which Truck Gps Reigns Supreme?

Versus
By Maya Collins May 1, 2026
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Are you a professional trucker navigating the complexities of the road and wondering if upgrading your navigation system is worth it? The Garmin dezl series is renowned for its robust features tailored specifically for commercial drivers, and two popular models often come up in conversation: the dezl 780 and the dezl 785.

Both devices promise to simplify your journey with advanced routing and driver-centric tools. However, subtle differences can significantly impact your daily operations. Understanding these nuances is key to making an informed decision that enhances efficiency and reduces stress.

This comparison dives deep into the Garmin dezl 780 vs 785, highlighting their strengths and weaknesses. We’ll help you determine which of these powerful GPS units is the perfect co-pilot for your trucking needs.

Specs at a Glance

Featuregarmin dezl 780785
Screen Size7.0-inch7.0-inch
Screen Resolution800 x 480 pixels800 x 480 pixels
Dimensions (W x H x D)7.8″ x 4.7″ x 0.8″7.8″ x 4.7″ x 0.8″
Weight11.1 oz (315 g)11.1 oz (315 g)
Battery TypeRechargeable lithium-ionRechargeable lithium-ion
Battery LifeUp to 2 hoursUp to 2 hours
GPS TypeHigh-sensitivity GPSHigh-sensitivity GPS
Navigation FeaturesTruck-specific routing, points of interest, speed limit warningsTruck-specific routing, points of interest, speed limit warnings
ConnectivityBluetooth, Wi-FiBluetooth, Wi-Fi
Voice ControlYesYes
Dash Cam IntegrationNoYes (built-in)
Camera ResolutionN/A1080p

Feature-by-Feature Breakdown

Display Size & Resolution

  • Garmin Dezl 780: Features a 7-inch capacitive touchscreen with a resolution of 800 x 480 pixels. This provides a clear and spacious view for navigation and truck-specific information. The display is bright enough for most daylight conditions.
  • 785: Also boasts a 7-inch capacitive touchscreen with the same 800 x 480 pixel resolution. Functionally identical to the 780 in terms of display quality and size.
  • Winner: Tie

Truck-Specific Navigation & Routing

  • Garmin Dezl 780: Offers detailed truck routing, including custom truck profiles (height, weight, length, hazardous materials), road warnings, and points of interest relevant to truckers. It excels at finding truck-friendly routes and avoiding low clearances or weight restrictions.
  • 785: Includes the same advanced truck navigation features as the 780. It provides comprehensive routing options tailored for commercial vehicles, ensuring efficient and safe journeys.
  • Winner: Tie

Preloaded Maps & Updates

  • Garmin Dezl 780: Comes with preloaded North America maps, which can be updated wirelessly via Wi-Fi. Lifetime map updates are included, ensuring you always have the latest road data.
  • 785: Also includes preloaded North America maps and supports wireless updates. Like the 780, it benefits from lifetime map updates, keeping your navigation current.
  • Winner: Tie

Wi-Fi Connectivity

  • Garmin Dezl 780: Built-in Wi-Fi allows for easy software updates, map downloads, and syncing with Garmin services without needing a computer. This enhances convenience for keeping the device up-to-date.
  • 785: Features integrated Wi-Fi for the same benefits as the 780: seamless updates and downloads. This connectivity is a significant advantage for maintaining the device’s functionality.
  • Winner: Tie

Bluetooth Connectivity

  • Garmin Dezl 780: Supports Bluetooth for hands-free calling and syncing with compatible smartphones. This allows you to make and receive calls directly from the navigation device, improving safety.
  • 785: Equipped with Bluetooth for hands-free calling and smartphone integration. It offers the same convenience and safety features for communication on the road.
  • Winner: Tie

Voice Assistant & Control

  • Garmin Dezl 780: Features Garmin Voice Assistant, allowing you to control navigation and access features using voice commands. This hands-free operation further enhances driver safety and convenience.
  • 785: Also includes Garmin Voice Assistant for voice-controlled navigation and device operation. This feature is identical to the 780 and provides a similar level of hands-free control.
  • Winner: Tie

Built-in Dashcam

  • Garmin Dezl 780: Does *not* have a built-in dashcam. Users would need to purchase a separate dashcam and integrate it if desired.
  • 785: Features an integrated forward-facing dashcam that records your drive, providing an extra layer of safety and evidence in case of incidents. This is a significant hardware difference.
  • Winner: 785

Physical Dimensions & Weight

  • Garmin Dezl 780: Dimensions are approximately 7.8″ W x 4.7″ H x 0.8″ D and it weighs around 11.2 oz. It’s a substantial device designed for truck cabins.
  • 785: Has identical physical dimensions and weight to the dezl 780. The form factor is the same, reflecting their shared core design.
  • Winner: Tie

Winner by Category

CategoryWinner
Navigation FeaturesTie
Display QualityTie
PortabilityTie
Integrated Dash Cam785
All-in-One Solution785
Value (without dash cam)garmin dezl 780

What They Have in Common

  • Screen Size & Resolution: Both devices feature a large 7.0-inch touchscreen display with a resolution of 800 x 480 pixels, offering clear and sharp visuals for navigation.
  • Dimensions & Weight: They share identical physical dimensions and weight, making them equally portable and easy to mount in a truck cabin.
  • Battery Performance: Both the dezl 780 and 785 are equipped with a rechargeable lithium-ion battery, providing up to 2 hours of use on a single charge.
  • Navigation Capabilities: Both units offer robust truck-specific routing, including customizable routes for truck dimensions and weight, along with a comprehensive database of truck-friendly points of interest.
  • Connectivity Options: They both support Bluetooth for hands-free calling and Wi-Fi for software updates and downloading additional maps or apps.
  • Voice Control: Hands-free operation is a key feature of both models, allowing drivers to control various functions using voice commands for enhanced safety.

Garmin Dezl 780 Vs 785 Buying Guide

Screen Size and Display Quality

Both the Garmin Dezl 780 and 785 feature a generous 7-inch touchscreen display, making them ideal for easy viewing and interaction while on the road. The clarity and brightness are excellent on both models, ensuring readability even in direct sunlight. The larger screen size significantly reduces the need for squinting and makes navigation more intuitive for truck drivers who need to quickly glance at directions. (See Also: Maybelline Exhilarator Vs Pioneer )

Navigation Features and Truck-Specific Routing

The core strength of both units lies in their advanced truck-specific navigation. They offer custom routing based on truck dimensions, weight, and hazardous materials, helping drivers avoid low clearances, weight-restricted bridges, and dangerous roads. Both models provide detailed maps with Points of Interest (POIs) relevant to truckers, such as truck stops, fuel stations, and service centers, ensuring efficient and safe journeys.

Connectivity and Smart Features

Connectivity is a key differentiator. The Dezl 785 offers built-in Wi-Fi for easy map and software updates without needing a computer, a significant convenience for busy truckers. Both devices support Bluetooth for hands-free calling and audio streaming. The Dezl 785 also integrates with the Garmin BC 30 wireless backup camera (sold separately), enhancing safety during maneuvering in tight spaces.

Durability and Build Quality

Garmin is known for its robust build quality, and both the Dezl 780 and 785 are designed to withstand the rigors of professional trucking. They are built with durable materials to endure vibrations and temperature fluctuations common in vehicle cabins. While both are reliable, the slightly more advanced features of the 785 might appeal to those seeking the latest in trucking technology and convenience for long-haul operations. (See Also: Omron Bp5450 Vs Bp7450 )

Who Should Buy What?

Buy garmin dezl 780 If…

  • You need a reliable truck GPS with excellent navigation features for large vehicles.
  • You prioritize a large, clear display and intuitive interface for long-haul driving.
  • You already have a separate dash cam or do not require one integrated into your GPS.
  • You are looking for a more budget-friendly option that still offers premium truck navigation.

Buy 785 If…

  • You want an all-in-one solution that combines a high-quality truck GPS with a built-in dash cam.
  • You value the added safety and recording capabilities of a 1080p dash camera integrated directly into your navigation device.
  • You are looking for the latest features and convenience of a dash cam that is seamlessly part of your GPS unit.
  • You plan on using the dash cam for incident recording or monitoring road conditions.

Frequently Asked Questions

What is the main difference between the Garmin Dezl 780 and 785?

The primary distinction lies in connectivity features. The Dezl 785 boasts built-in Wi-Fi, allowing for effortless over-the-air map and software updates without requiring a computer connection. This convenience is a significant advantage for truckers who are constantly on the move and need to keep their devices current. Both units offer excellent truck-specific navigation and a 7-inch display.

Is the Garmin Dezl 785 worth the extra cost over the 780?

For many truckers, the added convenience of Wi-Fi on the Dezl 785 justifies the price difference. The ability to update maps and software wirelessly saves time and hassle, especially on long trips. Additionally, the 785’s compatibility with the Garmin BC 30 backup camera offers enhanced safety. If you value seamless updates and advanced safety features, the 785 is likely worth the investment.

Do both models offer lifetime map updates?

Yes, both the Garmin Dezl 780 and 785 come with lifetime map updates. This ensures that your navigation data is always current, reflecting new roads, construction, and changes in traffic regulations. This feature significantly adds to the long-term value of both devices, providing reliable navigation for years to come without additional subscription fees. (See Also: Furnace Rental Vs Purchase )

Can I use the Garmin Dezl 780/785 for car navigation?

Absolutely. While optimized for truck navigation with features like custom routing for large vehicles, both the Dezl 780 and 785 can be used effectively for car navigation. You can simply input your car’s dimensions, and the device will provide appropriate routing. The large screen and clear interface make them user-friendly for any type of vehicle.

What is the battery life like on these devices?

The battery life on both the Dezl 780 and 785 is designed for convenience during short breaks or when not plugged into a power source. Typically, you can expect several hours of use on a single charge, which is sufficient for brief stops. However, for continuous operation during long drives, it is recommended to keep them plugged into the vehicle’s power adapter.

Final Verdict

Both the Garmin Dezl 780 and 785 are exceptional GPS devices tailored for the trucking industry, offering robust truck-specific routing, large displays, and reliable performance. The Dezl 785 edges out the 780 primarily due to its integrated Wi-Fi, which greatly simplifies map and software updates, along with its compatibility with the BC 30 backup camera for enhanced safety. These conveniences make the 785 the more modern and user-friendly option for professional drivers.

Winner: Garmin Dezl 785