When looking for a GPS system for RV camping, here are some factors to consider to pick a good one:

Screen size: A larger screen makes it easier to see the map and directions, so consider the screen size of the GPS. Aim for a screen size of at least 5 inches.

RV-specific features: Look for GPS systems that have RV-specific features such as custom routing for RVs, height, weight and length restrictions for bridges, tunnels and roads, and campsite locations with contact information.

Map updates: Make sure the GPS system offers free map updates so that you have the latest information when traveling.

Voice commands: Consider a GPS with voice commands that will allow you to keep your eyes on the road while navigating.

Battery life: Check the battery life of the GPS system. Look for systems that have a long battery life or that can be charged while in use.

Mounting options: Check if the GPS system comes with a mounting bracket that can be attached to the windshield or dash. It is important that the mount is strong enough to hold the GPS device in place while driving.

User-friendly interface: Look for a GPS system with an easy-to-use interface that is simple to navigate.

Price: GPS systems can vary greatly in price. Consider your budget and the features that are most important to you when selecting a GPS system for RV camping.

By considering these factors, you can select a good GPS system for RV camping that will help you navigate to your destination safely and easily.