Quick Verdict
The Garmin dēzl OTR720 is our overall pick in this comparison because it offers more verified tools for arrival planning, truck parking, and route management.
The Rand McNally TND 750 is a good alternative for drivers who want longer battery life and access to live services through an internet connection without a smartphone app.
Both GPS units have roughly 7-inch displays and support truck-specific routing based on vehicle profile information. You can enter your truck height, width, length, and weight to find suitable roads. Both units also give warnings about low bridges, weight limits, steep grades, and other road restrictions.
The main difference is how each unit helps you plan and complete a trip.
Why Choose the Garmin dēzl OTR720?
The Garmin dēzl OTR720 has several features that can make daily truck operations easier.
One important feature is satellite arrival imagery. It gives you an overhead view of your destination before you arrive. This can help you find truck entrances, loading docks, and access roads. It is useful when you make deliveries to locations that you do not know.
Garmin also gives you access to information from its driver community. You can find truck parking locations, read driver ratings, and identify preferred truck entrances. The unit also includes a CAT Scale locator and supports PrePass notifications when you have an active account.
The OTR720 weighs 8.5 oz, compared with 12 oz for the TND 750. Its smaller weight and thinner body can make it easier to handle when you move it between trucks.
However, there are two limitations. The Garmin battery lasts up to 1.5 hours, and many live services require a compatible smartphone with the Garmin dēzl app.
Why Choose the Rand McNally TND 750?
The Rand McNally TND 750 is a practical choice for drivers who prefer a different connection method and longer battery operation.
Its stated battery life is up to 5 hours. This is considerably longer than the Garmin battery life. It can be useful when you plan a route away from your truck’s power supply.
The TND 750 also provides live traffic information, weather overlays, and fuel prices through an internet connection. You do not need a dedicated smartphone companion app for these services.
Its Rand Navigation software supports truck-specific routes and driver alerts. It also includes tools to record fuel purchases and mileage.
The main limitation is that some features listed for the Garmin, such as community loading dock information and satellite arrival imagery, are not verified for the TND 750. This does not confirm that all these features are absent.
Garmin dēzl OTR720
A 7-inch dedicated truck GPS with custom truck routing, satellite arrival imagery and connected trucking features.
Rand McNally TND 750
A 7-inch dedicated truck GPS with configurable truck routing, real-time traffic and weather, fuel-price data, extensive driver warnings and included map updates.
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Key differences
Live services connection
Smartphone app required
Battery life
Weight
Full comparison
Rows with different values are highlighted. “Not verified” means TruckerDude has not confirmed that feature from a reliable source; it does not mean the feature is absent.
| Feature | Garmin dēzl OTR720 | Rand McNally TND 750 |
|---|---|---|
| Key specifications | ||
| Brand | Garmin | Rand McNally |
| Device type | Dedicated GPS | Dedicated GPS |
| Built-in dash cam | No | No |
| Release year | 2024 | 2020 |
| Screen size | 6.95 in | 7 in |
| Screen resolution | 1024 x 600 | 800 x 1280 |
| Dimensions | 6.97 × 4.17 × 0.75 in | 7 × 4.5 × 0.85 in |
| Weight | 8.5 oz | 12 oz |
| Battery life | 1.5 hours | 5 hours |
| Wi-Fi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Connectivity | ||
| Live services connection | Smartphone app | Wi-Fi / Internet |
| Smartphone app required | Yes | No |
| Map updates included | Yes | Yes |
| Truck navigation | ||
| Truck-specific routing | Yes | Yes |
| Truck height input | Yes | Yes |
| Truck weight input | Yes | Yes |
| Truck length input | Yes | Yes |
| Truck width input | Yes | Yes |
| Hazmat support | Yes | Yes |
| Bridge height warnings | Yes | Yes |
| Weight limit warnings | Yes | Yes |
| Steep grade warnings | Yes | Yes |
| Weigh station alerts | Yes | Yes |
| Connected & trucker features | ||
| PrePass support | Yes | Not verified |
| CAT Scale | Yes | Not verified |
| Truck parking | Yes | Not verified |
| Satellite arrival imagery | Yes | Not verified |
| Community loading docks | Yes | Not verified |
| Live traffic | Yes | Yes |
| Live weather | Yes | Yes |
| Live fuel prices | Yes | Yes |
Final Recommendation
Choose the Garmin dēzl OTR720 if you frequently drive to unfamiliar destinations. Its arrival imagery, truck parking information, and additional planning tools give it an advantage for complex deliveries and long-distance routes.
Choose the Rand McNally TND 750 if longer battery life and internet-based live services are more important to you. It provides the essential truck navigation functions without the same smartphone app requirement.
For most professional drivers, we recommend the Garmin dēzl OTR720 because its additional truck-specific tools offer more support before and during a delivery.
Neither GPS can guarantee a safe or legal route. Always follow road signs and check restrictions for your truck.