Large 1.82-inch AMOLED screen with clear colors and excellent brightness. ✅ Very slim and lightweight design (weighs only about 26 grams). ✅ Battery lasts up to 10 days depending on usage. ✅ 24/7 heart rate monitoring. ✅ Blood oxygen measurement (SpO2). ✅ Sleep monitoring and quality analysis. ✅ More than 100 different sports modes. ✅ Built-in GPS for tracking walks and runs without needing a phone. ✅ Water-resistant up to 5 ATM. ✅ Receive notifications and calls, and answer calls via Bluetooth. ✅ Compatible with Android and iPhone devices. ✅ Ability to change watch faces with many styles