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BlackBerry Pearl: ~15 million
BlackBerry's slimmed down enterprise-focused phone got off to a good start. In many cases, within the first few days many retailers had sold out without the BlackBerry maker needing to pull the strings on any significant marketing campaign. In 2009, RIM sold its 50 millionth BlackBerry smartphone, selling 7.8 million smartphones in one quarter alone. The Pearl remains one of the most popular BlackBerry smartphones that has come out of the Canadian smartphone maker.
Image: CNET Asia
Sony Ericsson K750/K750i: ~15 million
In just over a year, Sony Ericsson is estimated to have sold around 15 million K750 mobile phones. Not quite smartphone, not quite feature phone; it was a high-end device that appealed to many. So many in fact that it amounted around 15 million during the time it was on sale. In one quarter alone, Sony Ericsson sold close to 14 million units; with the K750/K750i taking one of the prime spots in the top five list of best selling global phones. The company sold more than 103 million phones in 2007, showing just how popular the company in its day.
Image: Sony Mobile (formerly Sony Ericsson)
HTC Thunderbolt: ~16 million
Sales soared due to the excitement during the run-up to the device's launch, so much so that it broke record sales of one phone vendor. Wirefly reported that sales were 400 percent higher than any other pre-sale device. In just two weeks, Verizon sold 260,000 units.
Though it was rumored the device was selling faster than Apple's iPhone -- a rumor that was subsequently squashed -- but the HTC smartphone is believed to have sold 15 million units by the end of 2011, with another million during the last calendar year.
Image: Sarah Tew/CNET