Expanded GNSS Support Multi-band technology and expanded GNSS support (GPS, GLONASS, Galileo, QZSS and IRNSS) provide optimal accuracy in steep country, urban canyons and forests with dense trees. ABC Sensors Navigate every trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and 3-axis electronic compass. Preloaded Topoactive Maps Preloaded TopoActive maps provide detailed views of routable street and off-road networks, waterways, natural features, land use areas, buildings and more. Smart Notifications Receive emails, texts and alerts right on your handheld when paired with your compatible device. Micro SD Slot Using your compatible device and microSD memory card, conveniently download TOPO 24K maps and hit the trail, or access HuntView Plus maps to see public land types and boundaries as well as private landowner names and boundaries. Geocaching Get automatic cache updates from Geocaching Live, including descriptions, logs and hints. Garmin Explore App Plan, review and sync waypoints, routes and tracks by using the Garmin Explore app1 and website. You can even review completed activities while still in the field.