Analytics company IHS has estimated that the shipments of smart glasses may rise from just 50,000 units in 2012 to as high as 6.6 million units in 2016.[60] According to a survey of more than 4,600 U.S. adults conducted by Forrester Research, around 12 percent of respondents are willing to wear Google Glass or other similar devices if it offers a service that piques their interest.[61] Business Insider's BI Intelligence expects an annual sales of 21 million Google Glass units by 2018.[62][63][64] Samsung and Microsoft are expected to develop their own version of Google Glass within six months with a price range of $200 to $500.