Havit M9040s Removable Case Smart Watch.

Display: Features a 1.91-inch TFT display. Connectivity: Supports Bluetooth calling, allowing users to make and receive calls directly from the wrist. Health Monitoring: Offers over 100 sports modes, heart rate tracking, blood oxygen monitoring, and sleep analysis. Durability & Battery: The device has an IP67 waterproof rating and a 250mAh battery providing 11-30 days of use. Compatibility: Works with both Android and iOS devices via a companion app.