The life of a technology journalist inexorably involves a lot of gadgetry. And while I can appreciate the sleek beauty of new Apple hardware as much as the next person, I don’t routinely get excited by the prospect of unboxing any other new gizmo just because. But when the courier handed over the small white bag containing Elvie I was uncharacteristically eager to open it up — because this is a rare beast indeed: a connected device designed by women, for women…