Specifications Brand: Realme  Model Name: RMW2401 Colors: Black, Blue & Grey ‎‎Operating System: Android Compatible Devices: Smartphone Special Features: SpO2 Blood Oxygen Monitoring Mounting Hardware: Charger Number of items: 5 Display Technology: AMOLED Standing screen display size: ‎1.43 Inches Display Type: AMOLED Battery Average Life: ‎14 Days Batteries Included: No Batteries Required: No Battery Capacity: 380 Milliamp Hours Battery cell composition: ‎Lithium Ion Wireless Type: Bluetooth Connector Type: Bluetooth Item Weight: 130 Grams