Children's smartwatches are entering a new phase of technology. The ability to make video calls through the watch not only provides convenience but also enhances parental control. A mobile watch for kids has many advantages. It's always with them, can't be lost, and ensures that parents can stay connected with their child. The model accepts SIM cards from all carriers and features a built-in speaker and microphone. You can discreetly listen to the background noises around your child to ensure everything is okay. This is one of the parental control features that a children's smartwatch with a SIM card offers.