First, make sure your watch's battery is fully charged (charge it for at least 30 minutes).
To turn it on, hold the crown down for 3 seconds.
To turn it off, do the same.
Place the watch on its base with the crown facing up and charge it for 120 minutes.
Connecting your new Festina Smartime Smartwatch with your smartphone is very easy. You simply have to follow the instructions in the following tutorial: