Mobile World Congress: Future of smart devices in focus

It is estimated that by 2025 there will be 25 billion devices connected to the web, which is one of the main technology talking points at this year's Mobile World Congress - the Internet of Things.

    Does your fridge know when it is out of milk? Maybe your home has a smart meter to monitor heating?

    It is estimated that by 2025 there will be 25 billion devices connected to the web, which is one of the main technology talking points at this year's Mobile World Congress - the Internet of Things.

    Al Jazeera's Charlie Angela reports from Barcelona.


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