A:Answer If you have an LTE watch, it is automatically a phone. If you have the BT (Bluetooth) watch, you certainly can make and receive phone calls -- provided that you have a real phone nearby and paired with the watch on bluetooth. Then the phone acts like bluetooth in the car for example, where the phone sends the call out to the car speaker -- or to your watch. But if you don't have a paired phone nearby, then the watch won't take or receive calls.