【Perfect Multifunctional Smartwatch】: Children's watches are like smartphones. 1.44 inch high-definition color touch screen that supports all languages, two-way conversation, built-in SIM card slot, camera, flashlight, math games and more. You can talk to your child on a separate phone anytime, anywhere, and parents can set an alarm using the app. Easy to use, it is the best choice for birthday gift. 【Waterproof Smart Digital Watch】: This children's smartwatch is IP67 certified. Silicone bracelet is more suitable for children's skin. Waterproof: You don't need to take it off when it rains, wash your hands or use water in your daily life. Suitable for ages 4 to 12. 【LBS & SOS Emergency Mode】: Designed for children's safety. Press and hold the SOS button for three seconds. She will dial three phone numbers and make emergency calls in two rounds until someone answers the APP alarm message. LBS service. You need to download \"Setracker2\" on your phone, which is compatible with all iOS and Android phones. 【Do Not Disturb】: When a child is in school or on a class visit, parents don't need to worry about the child disturbing learning. Parents can set Do Not Disturb mode for 3 periods. This function disables all functions - phone, games, music, camera, etc. except for the SOS function. 【Support】: High-quality smart watches to meet your needs. This watch supports SIM cards. Please buy your own SIM card to connect to the GSM network. We recommend using SIM cards in Germany: T-Mobile, Vodafone, O2, E-Plus. This signal currently only supports 2G.