Advertising spend on smart watches will reach $68.6 million (€64 million) by 2019, up from an estimated $1.5 million this year according to Juniper Research. The research company said that growth will be fuelled by the entrance of high-profile brands such as Apple into the smart watch arena, allied to increased consumer affinity with, and acceptance of, wearable technology. It argued that the emergence of an additional consumer screen would stimulate advertisers' interest, although until a critical user base is reached most ad-spend is likely to take the form of ad hoc campaigns. However, the company notes that brands will need to devise and implement new advertising formats designed to cater for the limited real estate on a smart watch screen. Release