What it is: A stand-alone device from companies like Garmin or TomTom that attaches to your dashboard or windshield and gives turn-by-turn directions on a relatively large screen. These models are ideal for someone with an older car that has an obsolete built-in navigation system or no infotainment screen and who doesn’t want to use a phone for navigation.

Pros: In addition to providing navigation, a stand-alone GPS can act as an infotainment screen, pairing with your phone to provide real-time traffic updates and even hands-free calling through a built-in microphone and speaker. Some models also include backup cameras, which can be an added convenience if your car does not already have one.

Cons: They’re pricey (ranging from about $100 to well over $300) and add to dashboard clutter. As with built-in systems, there may also be a fee to update maps.