The smartphone market is fiercely competitive worldwide.
While Apple has been making headlines in Europe and America, Research in Motion, the company behind Blackberry, is looking elsewhere.
In Nigeria, there are four million people using smartphones, and half of those phones are BlackBerry's. In the next four years, that number is expected to hit 25 million.
Al Jazeera's Yvonne Ndege reports from Nigeria's commercial capital Lagos.