Global Smartwatch Market Size, Share and Analysis Report By Operating System (Wear OS, HarmonyOS, WatchOS, Proprietary / RTOS), By Display Technology (AMOLED, Micro-LED, TFT-LCD), By Connectivity (Bluetooth-only, Cellular (4G/LTE), 5G-enabled), By Application (Fitness and Wellness, Medical and Chronic-care, Personal Assistance and Payments, Other Applications), By Regional Analysis, Global Trends and Opportunity, Future Outlook By 2025-2035