Global Wearable Fitness Tracker Market Size, Share and Trends Analysis Report, By Device Type (Smartwatches, Fitness Bands, Smart Glasses, Smart Clothing, and Others), By Connectivity (Bluetooth and Wi-Fi), By Operating System (Android, iOS, and Windows), By Distribution Channel (Online and Offline), By Application (Running, Cycling, Heart Rate Tracking, Stress Management, and Others), Forecast (2022-2028)