Green Lion 4G-Ultra Smart Watch - Equipped with a 2.06-inch AMOLED display and 410×502 resolution for vivid image quality. Nano SIM support and 2G/3G/4G connectivity allow standalone communication features. The 800mAh battery supports extended daily usage. Android 8.1 operating system and 2GB + 32GB memory ensure smooth performance. The built-in 2MP camera adds extra functionality for daily use.