What card does Tsinghua Tongfang children's telephone watch use?

Mobile or Unicom mobile phone cards are required in the business hall (telecom cards are not supported). Xiaomi card, Aarika card and snail mobile card are not recommended. The mobile phone card needs to be enabled with traffic and caller ID functions, and needs to be cut into the size of the medium card used by Apple's 4S mobile phone. You can also take your watch to the business hall and tell the customer service that this is a children's watch card, and the customer service will provide you with professional information.

Children's telephone watch

Functions: multiple positioning, two-way call, SOS for help, school, holiday guard, touching friends, family group chat, step counting, etc. Some brands can also be smart and waterproof, and classes are forbidden. Ensure the safety of children without affecting their normal study.

Extended data:

Phone watch type:

Children's telephone watch

Functions: multiple positioning, two-way call, SOS for help, school, holiday guard, touching friends, family group chat, step counting, etc. Some brands can also be smart and waterproof, and classes are forbidden. Ensure the safety of children without affecting their normal study. Create a healthy and safe growth condition for children?

Adult telephone watch

Functions: Bluetooth can synchronize mobile phones to make phone calls, send and receive short messages, monitor sleep, monitor heart rate, remind sedentary, track running, take photos remotely, play music, record videos, compass and other functions, which is specially designed for fashion hipsters?

Telephone watches for the elderly

Functions: Ultra-precision GPS positioning, family call, emergency call for help, heart rate monitoring, sedentary reminder, medication reminder and many other functions specially designed for the elderly, providing an umbrella for the elderly to travel. Take this watch and refuse the old man to get lost again!

References:

Baidu encyclopedia-telephone watch