Introducing FishSmart from Humminbird, the name you know and trust when it comes to making the most of your time on the water. With the new Humminbird FishSmart app, you now have the ability to access our library of high definition lake maps, as well as transfer maps and important software updates directly onto your Humminbird fish finder. - Access to High Definition LakeMaster Lake Maps on Your Smartphone and Humminbird fish finder: For those who seek the best freshwater lake maps, FishSmart allows you to purchase detailed contour maps of more than 1,500 LakeMaster lakes directly within the app. You can then view your LakeMaster lake map within the FishSmart app, or, you can now download your LakeMaster purchase directly onto your Bluetooth-equipped HELIX G2N and SOLIX series fish finder. - Ability to Identify and Perform software updates on your Humminbird fish finder: The FishSmart app allows you to identify if there are any software updates available to your Humminbird units. Depending on the models you own, you can then seamlessly download the update directly onto the internal hard drive of your Bluetooth-equipped HELIX G2N or SOLIX series fish finder. - GPS Enabled Navigation: Know your exact location, speed and course out on the water, with GPS enabled navigation available in FishSmart directly through your smartphone. - Data Planning Tools: The new FishSmart app allows you to plan waypoints and routes to get a head start on your fishing trips. It also allows tracking on the water so you can save your tracks for future trips. - Data Sharing Tools: FishSmart allows you to import or export waypoints, routes and tracks in GPX format to share with your friends or transfer them to your Humminbird fish finder. - Map Sharing: Maps purchased on ChartSelect are exclusively available for use on both your Humminbird fish finder as well as in the FishSmart app. No extra map purchase required. The Humminbird Advantage: Already own LakeMaster lake maps purchased via ChartSelect and want to use them on your smartphone? No problem! As an added benefit, all existing LakeMaster lake maps in your ChartSelect account are accessible for free within FishSmart once you download the app and sign-in to your account. Continued use of GPS running in the background can dramatically decrease battery life. For convenience, charts will be available for re-download for at least one year after purchase.