Garmin Combo Fishfinder and GPS systems are available on the company's own website, where they are referred to as "Chartplotter/Sonar Combos." They are also available from online retail giant Amazon, specialty retailers such as West Marine or WMJ Marine and eBay.
The range of features and sizes of this product is staggering, with the most high-end option retailing for around $6,000 on Garmin's website, as of July 2015. These optional features include Wi-Fi, the ability to share information with compatible products, the option to control the device with a mobile phone and memory card slots for enhanced data storage. They can also come pre-programmed with nautical maps and other data. The system is available as a fixed unit or as a portable device.