Companies such as Rand-McNally, PC Miler and Garmin offer GPS devices for truck drivers, as of 2015. A 2014 review by the Diesel Boss website compared units from these brands on hardware, software, mapping features, as well as truck driver-specific tools, routing input and calculation. Of the three brands, the review selected the Rand-McNally series of four unit models as the best overall.
The Diesel Boss review weighs hardware factors such as battery life, screen size and clarity, and Bluetooth and Wi-Fi capability when determining the first rating. The Rand-McNally and PC Miler models feature 5- or 7-inch screens, while the sole Garmin model only offers a 5-inch version. Three of the four Rand-McNally models have screen clarity rated as "excellent," while one in three of the PC Miler rate as highly. The Garmin offers Bluetooth connectivity, while the other two brands offer Wi-Fi capability instead.
In software and mapping features, the Rand-McNally models offer the easiest setup and adherence to truck route driving. It can be programmed for multiple drivers, as with a team-driving situation. It also provides thorough lists of amenities offered per truck stop -- an aspect the other brands provide weakly or not at all. The PC Miler beats the other brands on route calculation time.