Garmin GPSMAP 545S Navigator. Form factor: Fixed, Acquisition times - cold: 45 s, Acquisition times - warm: 15 s. Map view options: 3D. Display resolution: 480 x 640 pixels, Display size (HxV): 76.2 x 101.6 mm (3 x 4 "). Weight: 800 g, Width: 150 mm, Depth: 163 mm. Operating temperature range (T-T): -15 - 55 °C