HOCO kids' watches are typically 4G smartwatches with built-in GPS for location tracking, voice and video calls for staying connected, and SOS buttons for emergencies, providing parents with safety features and kids with entertainment and communication tools. Models like the Y101 and Y104 offer a high-resolution touchscreen, a camera for photos, activity tracking, and support for multiple languages, with some models requiring a nano-SIM card for full functionality.