1. In actual use, after adding the contacts of other brands of watches through the parent App, the telephone contact of famous brand telephone watches can be realized, but the intercommunication of chat functions cannot be realized;
2. Huawei has participated in the China Quality Friends Alliance organized by Shenzhen Smart Wear Federation, and is cooperating with children's watches of Abamachi and other manufacturers to open the function of shaking and adding friends. In the near future, it will support shaking and adding friends to realize the function of adding friends to make calls;
3. For cross-brand chat, the basic practice in the industry at present is to integrate QQ, and Huawei Children's Watch 3X supports QQ chat function.