Who uses QR codes?
When breaching the topic of trends that failed to spark the collective imagination, many analysts point to Quick Response, or QR, codes and NFC - Near Field Communication.
QR codes are barcodes that can be read by an imaging device,such as a camera on your smartphone, and will take you through to more information about what the code is promoting.
According Francisco Jeronimo, research director, European mobile devices, at intelligence firm IDC, "The valuable position is quite high, but the experience and visibility is not that great. How many people know that they need to download an application to use the QR code?" he told CNBC in a phone interview.
He argued that users would still rather type in the URL anyway. "If I want to find out about a brand, I pick up my phone and type in the URL and that's it. I don't need to point my phone at something and get the same information. That's the problem. What's the additional value that the technology gives me?"
Perhaps NFC is easier, an in-built system on smartphones that allows one phone to send a small amount of data to another phone nearby. This can even mean using your phone for payment.
NFC has underperformed, according to many, with consumers finding it difficult to find places offering NFC as a payment method. "I've never used it," Jeronimo said, highlighting the fact that Apple has resisted putting NFC in its phones.
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However, Wood from CCS Insight countered, "Both are alive and well in my opinion. It's just going to take time." Market research firm IHS recently estimated in a report that NFC-enabled mobile phone shipments reached 275 million units last year, up 128 percent from the estimated 120 million shipped in 2012.
Of course, Wood is right about "time." Some ideas that are now popular were first thought of years ago but did not gain popularity at the right time, meaning that some criticism of the popularity of wearable tech may be misplaced. It may be too early to tell.
David Heard, president of the Network and Service Enablement business segment at JDSU, told CNBC at MWC, "When I was at AT&T Bell Laboratories, when we were first putting out cellular, one of the guys back in the lab built a Dick Tracy watch that was a mobile on a watch. Now how many years ago was that?
"Now you're seeing wearables. How long will it take for that to really become mainstream? I don't know."
—By CNBC's Kiran Moodley. Follow him on Twitter