This is a smart watch with Alexa compatibility and calling function. It features Bluetooth 5.3 for stable connectivity. The 1.95-inch large display offers excellent visibility, and you can set photos as watch faces via the app. With a built-in microphone and speaker, you can answer/reject/make calls. It's equipped with numerous convenient features for daily health management, such as sleep monitoring, pedometer, and heart rate measurement. Supports over 100 sports modes. IP68 waterproof, allowing use during handwashing and face washing. Full charge in about 2.5 hours, with approximately 5-7 days of use under normal conditions. Android compatible. *This is an imported product, so the manual and display are simplified.