Garmin Dezl OTR1010 vs OTR810: Truck GPS Size Comparison

The OTR1010's 10-inch display is significantly larger than the OTR810's 8-inch screen, providing better map visibility and easier interaction while driving. The extra screen real estate makes split-screen views more practical, showing navigation and trip data simultaneously without feeling cramped. For drivers with aging eyesight or who prefer seeing more map context at a glance, the 1010's larger display is a meaningful upgrade.

Both units run identical Garmin truck-specific routing software with the same truck profile customization (height, weight, length, hazmat), same road restriction database, and same points of interest. Route calculations, traffic avoidance, and truck stop information are functionally identical between the two models. There is no navigation software advantage to the larger model — you get the same routing brain in both sizes.

The OTR810's smaller footprint makes it easier to mount in any truck cab without blocking significant windshield visibility. The OTR1010's 10-inch screen requires more careful placement to avoid sightline obstruction, and the larger mount takes up more dash space. In smaller day cabs or trucks with limited mounting options, the 810 is the more practical choice.

Both models offer Bluetooth hands-free calling, smartphone notifications, and Garmin Drive app connectivity. The OTR1010 includes a slightly better speaker that produces clearer hands-free call audio. Both connect to the Garmin Drive app for live traffic, weather, and fuel pricing. The connectivity feature set is nearly identical, with the 1010's audio quality being the only notable difference.

The OTR810 typically costs $100-150 less than the OTR1010, with the only meaningful hardware difference being screen size. For drivers who find the 8-inch screen adequate, the 810 represents better value since the navigation software and features are identical. The 1010's premium is entirely for the larger display, which is a personal preference rather than a functional upgrade.