Excerpt: A large screen on a navigation GPS device offers more on-screen options. However, bigger screens are not always better. When is the screen for your navigation system big enough to offer a clear view without affecting your line of sight through the windshield? The TomTom VIA 1605 TM has a 6-inch screen - the largest offered by TomTom - and it has an improved screen resolution of 800 x 600 pixels.
Pros: The screen size makes the display easy to see, and this model comes with lifetime map and traffic updates.
Cons: This device does not have a multitouch-capable capacitive screen, and it lacks Bluetooth.