I suggest you do not update Gear Manager as this will make Watch Styler unusable!! The update was only to make Gear Manager compatible with Gear S.
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Watch Styler is compatible with Gear2! Well kinda, only the analog themes works. Digital and Analog/ Digital do not work! Multi-Watch is only for Gear 2, its not in Samsung Appstore for Gear1 yet. However Analog and Digital faces do work now! If you like a Watch face and there is a donate button, please show its designer some love...

WatchStyler MultiWatch Faces

Tizen Widgets

GearS Faces