Promate Smartwatch BT Call 1.8'' Amoled PROWATCH-M18 Black 1.78'' AMOLED Display - The ProWatch-M18 features a 1.78" AMOLED display with a premium 368x448 pixel resolution, ensuring stunning visuals and an always-on display for convenient viewing. Advanced Qualcomm Chipset - You will experience a seamless performance and lightning-fast responsiveness powered by the latest AC7012A Qualcomm chipset, ensuring smooth multitasking and enhanced user experience. Precise Health Monitoring - Take control of your health and fitness with the VC9201 + VP60A heart rate sensor, providing accurate heart rate monitoring, enabling you to optimize workouts and track your overall well-being. Extensive Media Storage - Enjoy your favorite music on the go, as the ProWatch-M18 offers over 240 media storage, eliminating the need for additional devices, ensuring you stay motivated during workouts. Ready for Adventure - Your smartwatch can handle water splashes, rain, and dust with ease. It's the perfect companion for your active lifestyle, providing an impressive 20 days of battery life, ensuring uninterrupted usage and extended performance.   Bluetooth Profiles: BR/EDR/BLE Bluetooth Frequency: 2402-2480MHz Chipset: AC7012A Input Rating: 5V/1A Screen Size: 1.78" Display Type: AMOLED Screen Resolution: 368*448 RAM: 350Kb ROM: 128Mb + 512Mb SD Nand Flash storage Battery Capacity: 260mAh Usage time: 15-20 days Compatible OS: Android 5.0 / iOS 11.0