https://qooah.com/2014/07/11/android-wear-%e5%8f%af%e9%81%99%e8%b7%9d%e8%87%aa%e6%8b%8d-%e5%90%88%e5%bd%b1%e6%9b%b4%e6%96%b9%e4%be%bf/
Android Wear 可遙距自拍, 合影更方便