I get a lot of questions weekly about which Navionics card is the best or I have an old card that I have never updated. There are anglers on the water every day sonarlogging and uploading data to the Navionics website. This data is pushed out through the webapp or the app for your phone or tablet first. The only way to access the most current map of your lake is to update your card or to have the app on your phone/tablet. I have both. I use the Navionics Regions West card and the app. Here is what it looks like.