Not only can you receive calls right on your Apple Watch, you can also make them!
It's like living in the future. Phone calls. On your wrist. And there's more than one way to do it. While Siri will almost always be the easiest and quickest way to make a call on your Apple Watch, you can also fall back on the Phone and Friends apps for when Siri isn't available or appropriate. All three ways are simple to so, once you know how!
Full story from the iMore Blog...