5inch Android GPS Navigator with GSM

Hello, I am developing a fleet management system and need at least 3 suppliers/manufacturers of 5inch Android GPS navigator with GSM. Device shall be a single all-in-one device, satisfying below list requirements: - Incoterm FOB Price: = 2,2 must) (>= 4,0 preferable) - GSM: Quad-band, supporting M2M, GPRS, 3G - GPS: high sensitivity receiver with internal antenna, chipset: CSR SiRFstarIV or SiRFstartV, Broadcom BCM475X or Qualcomm, AGPS & GNSS & GLONASS must, DGPS & WAAS preferable - Battery: internal litium-ion - Speaker: internal, minimum 1W - CPU: minimum 500 MHz, dual core - Storage: Min 1 GB (4GB preferable) - Memory: Min. 512 MB DDR - SD Card slot - 1 or 2 Sim Card slot(s) - Bluetooth - Wifi (supporting IEEE802.11b/g/n) - RS232 serial channel - G sensor - USB2.0 - DC power input - FCC,ROSH, CE certified - Warranty: >= 1 year