Technofuturists have touted smart glasses as the next big device off and on for more than a decade. They were wrong, often embarrassingly so, because wearables makers were either laser-focused on the underlying technology at the expense of style — epitomised by the dorky Google Glass, which even a cameo in a Diane Von Furstenberg runway show couldn’t make cool — or simply bolted half-baked features on existing products.
In the last few months, we’ve seen mounting evidence that tech…

