Huawei introduced something so simple, that I wonder how come so far, no router manufacturer approached it yet: a 4G mobile ( for car ) router that plugs directly into the power socket of the car, or in the cigarette lighter. Huawei CarFi is shaped like a FM mp4 player or a FM modulator, to say so.
Place a SIM card in it, and it generates a Wi-Fi network using this connection, like any portable 3G router. Alternatively, it can be controlled remotely via smartphones with Android or iPhone, using “Huawei Hilink” app, available for download for free . As for specifications, it has 4G LTE Cat 4 (up to 150 Mbps downlink and 50 Mbps uplink) and it generates a 802.11b / g / n wireless network which allows up to 10 devices to be connected.
It also has a USB port ( provides a maximum of 1 A ) that can connect another device (smartphone or tablet) and powers it, so you can charge your smartphone while surfing the Internet. Huawei already had the solution proven in various passenger vans in Barcelona. It is an interesting solution, simple and cheap to have Internet in your car.