GPSMAP 640, 5.2", WVGA, 800x480, 9h, NMEA, SD, 490.4g
Garmin GPSMAP 640, Internal storage, 3D, 13,2 cm (5.2"), 800 x 480 pixels, 114,3 x 68,6 mm (4.5 x 2.7"), SD
Garmin GPSMAP 640. Map storage: Internal storage, Map view options: 3D. Display diagonal: 13,2 cm (5.2"), Display resolution: 800 x 480 pixels, Display size (HxV) (imperial): 114,3 x 68,6 mm (4.5 x 2.7"). Compatible memory cards: SD. Form factor: Fixed, Product colour: Grey, Interface type: Touch Screen. Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 9 h