AT&T, KT and Vodafone are using a high-tech house at the Mobile World Congress in Spain to demonstrate how connected technologies and devices from companies such as Sony and Qualcomm can be used to improve everyday living. Among the devices featured is a bathroom that checks the user's blood sugar and a door that can be locked and unlocked remotely. "Our thing, really, is connecting everything," said Glenn Lurie, head of AT&T's Emerging Devices business. "If it has current running through it, it should be connected. And when you connect devices, it makes them smarter."
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