https://qooah.com/2013/07/29/samsung-%e6%99%ba%e8%83%bd%e6%89%8b%e9%8c%b6-smart-watch-sm-v700-%e5%87%ba%e7%8f%be%e5%9c%a8%e4%bb%98%e9%81%8b%e4%b8%ad/