Huawei has launched several network devices this year, the Huawei E5151 and Wingle E8131 Data card are recently launched by the company. The Huawei E5151 is bundled with some nice features thus is the reason for its expensiveness. The Wingle E8131 also comes with some really cool features and it is priced at RS.2590 because every thing happens inside the device in the way it should be and you can only get result. The above line means that the Huawei E5151 comes with a digital notification LED and integrated battery to power it whereas the Wingle E8131 is a data card with some extra ordinary features.
Huawei E5151
It is all in one network device that features LAN PORT (RJ 45), Ethernet port, micro USB port, 3G WiFi router and Mac address cloning. You can connect to up to10 devices over WiFi. you can insert the 3G SIM card and can also connect LAN. It comes with pre loaded setting like APN ( Access Point Name) and IP settings so that data connectivity will always be easy for you. The wireless speed transmission is up to the 72Mbit/s. It has 1500 mAh battery which can last up to 5 hours of active use. You can even put the device in your pocket as it weighs only 150 grams. It is compatible with Windows XP / Vista / Windows7 / Mac OS 10.5 / Mac OS 10.6 / Mac OS 10.7 Operating systems. 
Huawei Wingle E8131
The Wingle E8131 is the worlds first data card with which you can connect up to 5 devices over Wi-Fi. The data-card can be used as the USB modem and in case you want to connect through WiFi remotely via the device you have to plugin the device in to your PC. It features USB 2.0 and has Balong V3 chip. It transmits data at speed of 21.6 Mbps for DL and up to 5.76 Mbps for UL.
Huawei Wingle E8131 and E5151 are priced at RS2890 and Rs 4800 respectively.