The consumer and business smart phone markets are converging. What is the difference between a "business smart phone" and a "consumer smart phone" anymore? Sm

The consumer and business smart phone markets are converging. What is the difference between a "business smart phone" and a "consumer smart phone" anymore? Smart phone's used to be inherently business focused due to their higher cost and complexity, but the iPhone and Android have brought smart phones to consumers. Thus I don't believe we have a "business smart phone" market any longer; instead we have a "smart phone" market.