After receiving the test build, the speakers on the watch work which means that phone calls can be made or received. In addition, ringtones can be selected. The owner of this particular Huawei Watch says that there is one issue he doesn't like. When the device is in text-to-speech mode, it will provide play-by-play of everything done with the watch as well as repeat the time and menus on the screen.
While the update enables features that Android already said would be coming with the next update to Android Wear, The LG Watch Urbane 2nd Edition LTE was supposed to be the first Android Wear smartwatch with cellular connectivity (the Samsung Gear S and Samsung Gear S2 are both powered by Tizen), that device was cancelled.
Huawei Watch owners should be very excited knowing that the next Android Wear update is getting closer, and it will give them some eagerly-awaited capabilities.
source: Reddit via DroidLife