AT&T's LTE-M network travels through floors and walls, but at the cost of speed

US carrier AT&T announced the completion of its LTE-M network, designed for IoT (Internet of Things) devices. This is good news for anyone looking to enjoy smart home functionality, for their appliances and smart devices will now benefit from a carrier-grade data connection, rather than settling for home Wi-Fi.

There are several differences between LTE-M and regular LTE. For starters, AT&T is charging $1.50/mo per device on an annual basis. That works out to $18 bucks for a year of internet. Alas, this means costs can greatly add up once you add more devices to the network. AT&T ...