To compare different GPS devices, navigate to the Products section on websites of GPS manufacturers, such as Garmin, or access the Reviews section for GPS navigation devices on websites such as PCMag.com, and select which devices to compare. Alternatively, compare the top-rated GPS devices in the Electronics section of TopTenReviews.com.
On Garmin.com, hover over the Products button in the navigation bar, hover over the Automotive option, and select the desired type of vehicle. Find the devices you want to compare, check the boxes next to the Compare option for each device, and click on the Compare button. The comparison page displays a table that compares dimensions, performance, information regarding maps, memory capabilities and navigational features such as junction view and route avoidance, among others.
On PCMag.com, click on the GPS Navigation link on the Products Guide page, check the boxes next to the desired devices, and click Compare Selected. Similar to Garmin.com, PCMag.com displays the features in a tabular format and provides an option to add other GPS Devices to the comparison chart by clicking on the Add a Product button. On TopTenReviews.com, select the Electronics category from the home page, click on the GPS link, and select the desired type of GPS devices. The website compares and rates the top 10 GPS devices for the current year based on their features, design, support and navigational functions.