Sales of Nokia’s first Windows Phone devices are set to fall short of expectations, according to industry analysts.

Bernstein Research reckons that the Nokia Lumia 800, which launched in the UK last week, will only ship half a million units before the end of 2011.

Analyst Pierre Ferragu has been checking out data on Google Trends and found that the buzz level is around the same as the Symbian-powered Nokia N8, which endured a tough time.

Another firm, Pacific Crest says it had expected the Lumia 800 to ship up to two million Christmas-boosted sales, but have now switched the estimate back to just half-a-million.