How does the phone watch reply to 10086 SMS?

Open the mobile APP that has bound the children's watch, and there is a phone bill inquiry in the software. With a click, the watch will automatically send a text message to the operator to check the phone bill, and then the mobile APP can see the balance.

Telephone watch, a new communication tool that integrates the functions of watch, call and positioning, has been sought after by many young parents in recent years.

With the development of mobile technology, many traditional electronic products have begun to add mobile functions, such as watches, which used to be only used to tell the time, but now you can also make calls by inserting cards.