How to Compare GPS Models Before Purchasing One

Your first task in buying a GPS system is to determine what features you need. Follow these steps to compare GPS models.

Instructions

Difficulty: Moderately Easy

Things You’ll Need:

• Internet access
• Computer

1. Compare the map display and map functions. GPS navigation maps vary in detail. Some maps include details like elevation and street detail. Don’t overdo it and buy a GPS navigation device with map details you will rarely use.
2. Decide what type of display you want, horizontal or vertical. Consider the number of pixels on your GPS system's screen -- that is, the degree of resolution. Screens are available in a variety of sizes. Choose the specifications that best fit your needs.
3. Consider antennae voltage and battery life. Choose a model with a high antennae voltage for clearer reception. People who take long trips should consider buying a GPS navigation model with a long battery life.