A-Rival NAV-XEA 50T. GPS Performance: Handheld/Fixed, Internal. Map: 3D. Display: 127 mm (5 "), 800 x 480 pixels, TFT. Memory: flash, microSD. Processor: 500 MHz. Weight & dimensions: 134 mm, 12.8 mm, 86 mm. Energy management: Lithium Polymer (LiPo). Operating system/software: Windows CE 6.0, maptrip 2.6 Truck. Other features: SiRF Atlas V, USB