Easiest & fastest way to install skins without cable.
1 Download the ZIP file to your google drive ( on laptop or iPhone or iPad or android smartphone )
2 Use Google Drive application on SmartWatch to download from your google drive to SmartWatch.
3 Use RAR application on SmartWatch to unzip file to your ‘ClockSkin’ folder on SmartWatch.
Note: step 2 & 3 can be done on many files at once.
With all respect.