GPS Oregon 550 Touch screen Unit dimensions, WxHxD : 2.4" x 6.3" x 1.4" ( 6.1 x 16.0 x 3.6 cm) Display size, WxH : 1.6" x 2.2" ( 4.1 x 5.6 cm) ; 2.6" diag ( 6.6 cm) Display resolution, WxH : 160 x 240 pixels Display type : transflective, 65-K color TFT Weight : 9.2 oz ( 260.1 g) with batteries Battery : 2 AA batteries ( not included) ; NiMH or Lithium recommended Battery life : 20 hours Waterproof : yes ( IPX7) Floats : no High-sensitivity receiver : yes Interface : high-speed USB and NMEA 0183 compatible Maps & Memory: Basemap : yes Ability to add maps : yes Built-in memory : 1.7 GB Accepts data cards : microSDâ„¢ card ( not included) Waypoints/ favorites/ locations: 2000 Routes : 200 Track log : 10, 000 points, 200 saved tracks Features: Automatic routing ( turn by turn routing on roads) : yes ( with optional mapping for detailed roads) Electronic compass : yes ( tilt-compensated, 3-axis) Touchscreen : no Barometric altimeter : yes Camera : no Geocaching-friendly : yes ( paperless) Custom maps compatible : yes Photo navigation ( navigate to geotagged photos) : yes Outdoor GPS games : no Hunt/ fish calendar : yes Sun and moon information : yes Tide tables : yes Area calculation : yes Custom POIs ( ability to add additional points of interest) : yes Unit-to-unit transfer ( shares data wirelessly with similar units) : yes Picture viewer : no Garmin Connectâ„¢ compatible ( online community where you analyze, categorize and share data) : yes