Specifications of Omnitech GPS Model 15223 :
Operation System Windows CE .net 4.2
CPU Freescale MX21 266MHz 32bit microprocessor
GPS Receiver 20 parallel channel GPS receiver
Antenna Built-in internal antenna and external connector (MMCX)
Display 4.3" (480x272) color TFT LCD touch screen display
Internal Memory SDRAM 64MB, NOR Flash 8MB
Audio Internal speaker 1W with 3.5mm stereo earphone jack
Power Source Mini USB connector DC 5.0V/500mA
Battery Rechargeable Lithium-Ion battery
4 to 6 hours of operation, 3 to 4 hours of charging time
Interface 1 SD/MMC socket
1 Mini USB connector
LED Indications 16.7M colors
Physical characteristic Dimension 121mm(L) x 84mm(W) x28 mm(H)
Weight 202g
CPU稍慢些，网上评论褒贬不一，anyway，可以先买回来hack试用，不满意再退不迟
