The following article explains how to enable Bluetooth on V3, G3 and V2.
V3 and G3
The V3 and G3 watches, once turned on, will always have Bluetooth on in the background. Click here to find out how to connect the watch to your mobile app via Bluetooth.
To enable Bluetooth on V2 please do the following:
1) Switch watch on by pressing the top left button.
2) Unlock the watch by pressing the bottom left button.
3) Press the bottom right button. The watch will now show the Bluetooth icon.
Your watch is now ready to pair with your watch. Click here to find out how to connect your watch to your mobile device.