Used Fitbit Charge 5 Smart Fitness Tracker (from Google) Comes with a new white strap. Key Specifications and Features of this tracker: 1. Screen and Design • Screen: 1.04-inch color AMOLED touchscreen. • Always-on Display: Option to keep the screen always on to display the time. • Water Resistance: Water-resistant up to 50 meters (suitable for swimming and showering). 2. Health and Fitness Tracking • Built-in GPS sensor: Accurately tracks outdoor activities (like running and walking) without needing to carry your phone. • Heart Rate Tracking (24/7): Continuous heart rate monitoring with alerts for high or low heart rate. • EDA sensor (Electrodermal Activity): Measures stress levels and helps you manage them through breathing exercises. • ECG app: Tracks heart rhythm and detects irregularities (like atrial fibrillation). • Blood Oxygen (SpO2) measurement: Monitors blood oxygen levels during sleep. • Sleep Tracking: Provides detailed analysis of sleep stages with a Sleep Score. • Various Sports Activities: Supports over 20 different sports modes with automatic exercise recognition. 3. Battery and Charging • Battery Life: Lasts up to 7 days with normal use (decreases with continuous GPS or always-on display). • Charging: Comes with a magnetic charging cable (shown in the picture). 4. Smart Features and Connectivity • Compatibility: Works with Android and iOS phones. • Notifications: Displays calls, messages, and app alerts (with quick reply option for Android phones).