" (2024) 47mm LTE AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, GPS,Titanium Silver [US Version, 1Year Manufacturer Warranty]" Operating System Wear OS Memory Storage Capacity 32 GB Special Feature Lightweight, Touchscreen Battery Capacity 590 Milliamp Hours Connectivity Technology Bluetooth, Cellular Wireless Communication Standard 802.11ac Battery Cell Composition Lithium Ion GPS Built-in GPS Shape Round Screen Size 47 Millimeters About this item RUGGED.