Marine Handheld With BlueChart® g3 Coastal Charts and inReach® Capabilities Cast Off Confidently with a Premium Marine Handheld GPS Stay on course with the Garmin GPSMAP® 86sci handheld. It provides all the outdoor functions and global communications of the GPSMAP 66 series and adds on-the-water features — including BlueChart g3 charts and wireless connectivity to your onboard marine system. It’s water-resistant, and it floats, so it’s as at home on the water as you. See all your marine system info at a glance with boat data streaming. Cruise with peace of mind. inReach interactive SOS is there if you need it. Send and receive custom and preset text messages from anywhere. Get the best of Garmin and Navionics® data with preloaded BlueChart g3 coastal charts. Stay out longer with up to 35 hours of battery life with 10-minute tracking.