Smart 4G phone watch: Support SIM card, answer or make calls can independently be completed on the wrist HD Spherical Screen: 1.95 inches HD spherical screen with 490x490 high resolution, delicate and vivid display effect, smooth and transparent screen carefully crafted by designers, its screen hardness is higher, and can resist scratches Side HD Camera: Upgrade the HD side camera, support HD video call, scan the code and take pictures and record a wonderful life anytime, anywhere GPS Real-time Positioning Navigation: Nine real-time positioning, built-in GNSS module, support GPSandBeidouandGLONASSandQZSSandAGPSandG-SensorandWi-Fiandbase station positioning NFC Access Function: Connect various NFC commands to your watch, the access card simulates, raise your hand to open the door, reach the app with one touch, and swipe the card with your wrist at ease Multiple Sports Modes: Supports running, skipping rope, climbing and other sports, and obtains data such as distance, speed, calories and weight in real time 24-hour Real-time Heart Rate Monitoring: The watch supports heart rate, blood pressure, blood oxygen measurement and automatic monitoring, so you can pay more precise attention to your health Specifications: <tbody> Key Component Main Chip SC8541E Display 1.95inch IPS 490x490 RAM 3GB ROM 32GB Battery 1100mAh 2 wire soldering, protection board Seiko 3.0V protection Loudspeaker 1508 Welded Wire Type Motor 0820 Weld Wire Motor Microphone yes 4015 Wire Solder Type Port TF card socket No TF card slot SIM socket Cato type nano card Charge Port pogo PIN 4 pin USB Jack no Indicator light no Camera Front 200W GC2385 single side camera Rear no no Data Wifi with wifi LDS antenna 2G B2andB3andB8andB5 Overseas version frequency band can be selected according to customer requirements 3G B1andB2andB5andB8 4G 4G_FDD: B1andB2andB3andB4andB5andB7andB8andB12andB17andB20andB28andB66 <br or >4G_TDD: B34andB38andB39andB40andB41 Bluetooth support GPS with GPS with wifi 2-in-1 LDS antenna NFC Supported, can write to normal access control Sensor Gravity sensor support SC7A22C Gyroscope no Heart rate sensor BD1820 Hall switch no The temperature no Physical buttons Power key yes AI key yes power consumption Standby time N or A Normal service time N or A Call support Software OS Adriod8.1 UI Customized dials Language Chinese or English or multinational < or tbody> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.