The Spacetalk Adventurer, from the global leader in children's safety wearable communication devices, is designed to give kids more freedom and parents greater peace of mind. This 4G phone smartwatch with GPS allows families to call and text their child. It also has safety features like SOS alerts, Safe Zones, Safe Contact Lists, and GPS locations on demand. With no open access to the Internet or social media, it's a simply safer phone for kids. This smartwatch works with all US mobile and Canadian wireless operators except Sprint. The Adventurer comes with 750 mA battery, and requires an activated nano SIM card from your favorite mobile carrier for cellular service functionality. Spacetalk suggests that you choose a cellular plan with unlimited talk and text and between 1 GB to 2 GB of data. Parents can download the free Spacetalk application on their mobile devices to customize safety, communication, location on demand, and many other features. The smartwatch also includes weather information, Bluetooth, chat groups, SMS/texts, and even being able to record personal audio texts (MMS) and short videos. New features are constantly updated on the device and parent app.