Units sold: 130 million

"Nokia," you say? Yes, Nokia. Surely, the once prominent cell phone brand may have become an afterthought in North America, but not without mention is how the company's stripped-down mobiles resonated with a public slow to adopt the smartphone. In this case, with the 1600 model, Nokia struck gold when it released the device in 2006, marketing it as an ultra-basic phone for prepaid users. And never underestimate the power of games. Nokia was able to target cell phone users in soccer-mad countries by loading the 1600 with futbol games tailored to the Asian and African markets.

* Bing: Lower your cell phone bill