Do I have to provide my own sim card for my watch?

No, your Watch-Phone comes with a sim card pre-fitted.

Is there a low battery alert?
Who will receive alert messages when the Safe Zones / Geo Zones boundaries are breached?
I am not receiving alert messages for my Geo Zones?
Can I control who can add the watch in the app?
Where can I find the watch mobile number?
To set reminders on the app to appear on the watch.