About this item 4G Network SIM Card Smart Watch: The Android smartwatch is equipped with a built-in Nano SIM card slot, supporting 4G/3G/2G networks, and also features WiFi functionality, allowing for quick internet access anytime and anywhere. It supports the following network frequency bands: GSM: 850 / 900 / 1800 / 1900; WCDMA: B1 / B2 / B5 / B8; LTE-FDD: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B17 / B20 / B28 / B66; LTE-TDD: B34 / B38 / B39 / B40 / B41 (100MHz). 1.85" HD Large Screen and Long Battery Life: The smartwatch for men features a 1.85-inch HD circular large screen with a resolution of 360*360. The men's smart watch can freely switch between screen display sizes (0, 1:0, and 1:1 modes) to meet your application scenarios. Its 1100mAh battery capacity is sufficient to support your daily usage. With NFC, GPS, and Camera Features: The smart watch for women is equipped with NFC access control functionality, allowing you to open applications with a simple touch for easy and convenient card swiping. It supports nine types of positioning, including GPS, BeiDou, GLONASS, AGPS, LBS, and WIFI, enabling precise trajectory navigation and making your travels easier and more convenient. The smart watches for men also features a 200MP HD camera, allowing you to take photos and videos. Sports Fitness Activity Tracker: The sports watch features multiple exercise modes to meet your daily fitness needs. It can accurately track all-day activities such as steps, distance, calories, and workout time, while also monitoring your heart rate and blood oxygen levels in real-time. Additionally, it is equipped with an SOS one-touch emergency feature, providing you with extra safety assurance during outdoor activities. Android 8.1 Operating System: The Android smart watch is equipped with a built-in Android operating system, featuring functions such as phone calls, SMS, hotspot and network sharing, flight mode, and mobile network connectivity. You can also download and install any third-party applications from the Google Play Store, including games, social media, and video entertainment apps, making your life more enjoyable. › See more product details