Product Certificates: ROHS,CE Appearance finish technology2.5D glass cover + aluminum alloy middle frame + plastic & 3D spherical glass bottom caseCPU:RealtekRTK8763EWE Memory :RAM32 Mb+ Flash 128Mb Display:1.39inch IPS TFT resolution: 360*360 Protection grade:IP67 APP :FitCloudPro Smart phone OS supported: Android 5.1 or above, IOS 9.0 and above Bluetooth Calling&Message ReminderThis men's smart watch is equipped with a BLE Ver5.0 and BT3.0 Bluetooth chip that allows you to make and receive calls directly through the watch's built-in microphone. The smart watch also supports storing contacts/viewing call logs/message alerts/social media notifications (WhatsApp, Twitter, etc.) All notifications are displayed on your wrist with vibrating alerts so you won't miss any important calls or messages!Smart Watch with A Large 1.39" Face This round smartwatch features an IPS touch screen with wider viewing angles, higher resolution, eco-friendly, vibrant colours, saturated images and natural quality. This outdoor smartwatch for men has a screen resolution of 360*360 and 128MB of flash memory. whether you are doing outdoor sports or indoor workouts, this men's fitness tracker smartwatch with AI voice assistant function frees your hands and will give you a whole new experience.More than 100+Sports ModesThis smart watch with call funtion has more than 100 sports modes, such as walking, running, cycling, playing badminton, etc. By connecting to the app via Bluetooth, you can download more sports, such as ball games and more. The smartwatches also records your steps, calories, distance, heart rate and detects your activity status in real time, giving you a more detailed view of your exercise data and can help you analyse, improve and enhance your sports performance.Large Battery Capacity&Rich UIThe smart watch android version has a built-in 300mAh low-power high-capacity battery, 2-2.5 hours for the watch to be fully charged, which can be used for 5-7 days and up to 25-30 days standby time, reducing the trouble of frequent charging (determined by personal use). Not only does the watch have 10 watch built-in dials, there are also hundreds of dials on the app market for you to choose from, and you can also upload images and set them as the watch background.