Why is it not recommended to use a secondary card for children's watches?

Children's watches recommend the use of a secondary card for the following reasons: the secondary card is a daughter card bound to the main SIM card and is mainly used by family members. It has the same functions as the main card, including voice function, short message function, traffic packet, call reminder, MMS and other functions. The main card includes monthly rent and consumption. Suitable for home use. It is no different from ordinary SIM card.

1. Controllability: When using the voice card of the Internet of Things, the number of packages will be automatically stopped, and no other expenses will be incurred; The package of the main card used by the secondary card will not stop even if it exceeds the package of the main card, and it can continue to be used, which has caused a lot of expenses to the main card. The assistant Kaka is in the child's hand, and there are many things out of control.

2, cost-effective: children's watches mainly use voice calls and traffic packages, relatively speaking, the use of secondary cards is overqualified.

3. Safety: Children's awareness of safety is relatively low, and it is easy to lose their watches. The voice card of the Internet of Things has no registration function and will not cause personal financial or economic losses; The secondary card, like the ordinary SIM card, has the functions of registration and short message, which is easily used by some criminals to do illegal things, and also affects the use of the main card.

Functions of Children's Phone Watch Card

1. Wearable devices are bound with IOT cards to increase customer stickiness.

2. 1 1 mobile voice IOT card.

3, support voice function, free answering, including caller ID.

4, 4G Internet of Things card, backward compatible with 2/3G.

5. Provide the query of the minutes and flow margin of the merchant terminal and the C terminal.

6. Provide platform or API interface, and complete online real-name authentication within 30 seconds.

7. The Security Department will mark the legally sold commodities. Enhance customer awareness.