How to make phone calls on Apple Watch

So you have a brand-spanking new Apple Watch, or maybe you have had one on your wrist for a while. But you never thought to use it for phone calls. Why not? Did you know you can make and receive phone calls right from an Apple Watch? In fact, you can make and receive calls over FaceTime Audio as well as via the cellular network. Some believe that you require an Apple Watch with Cellular connectivity to be able to answer an incoming call right from your wrist, but that isnt necessarily the case. One of the things you probably didnt know your Apple Watch can do is make and receive calls. As long as your connected iPhone is nearby and that device is on an active cellular network, you can make phone calls from the Watch itself, cellular edition or not.

Source : https://www.pocket-lint.com/how-to-make-phone-calls-on-apple-watch/