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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
Samsung E250: ~30 million
Thanks to huge popularity in emerging markets, not limited to Africa, Samsung sold more than 30 million E250 handsets since it first launched in 2006. It was also extremely popular in Samsung's home country of South Korea, where it sold in the region of 20 million handsets in less than a year. The handset included a VGA camera and FM radio, and the battery lasted for days. One of the main reasons behind its success was that it was extremely cheap, costing only around $150.
Image: GSM Arena