This graph shows how many smartphones are sold each quarter dating back to the start of 2010. The division is made between the four main smartphone platforms, showing which ones are most popular and which one is the quickest growing in terms of smartphone sales. Keep in mind that Android is used on many different handsets (HTC, Samsung, Sony, LG, etc.) and Windows likewise (Nokia, HTC). Apple and Blackberry, on the other hand, have their own native devices – the iPhone and Blackberry smartphone. Blackberry smartphones come in different series with varying price classes while Apple has only one product line.