Another IFA, another ZenWatch - and this time it's the Asus ZenWatch 3, which is one of the first to use Qualcomm's new super-efficient chipset in side.Combined with a fairly substantial 340mAh battery pack inside the 10.75mm thick frame (and a 200mAh battery pack to add in should you need it), the ZenWatch 3 uses the new Snapdragon 2100 chipset that's...