Home > Products > > 4G Kids Smart Watch > 4G Kids Video Call Watch LT21 Product Name: 4G Kids Video Call Watch LT21 Model No.: LT21 Dimensions: 232*41.5*16.8mm Features: Color black, blue, pink Screen 1.4inch  IPS screen, Pixel 240x240 Touch panel Full lamination, 2.5D OS RTOS Solution ASR3603S, 832MHz, One-core ARM Cortex-R5 processor GPS Support 4G Video Call By APP or VOLTE Memory 192MB RAM + 128MB ROM Location GPS，AGPS，LBS，WIFI 2G Network GSM B2/3/5/8 3G Network WCDMA B1/2/5/8 4G Network LTE B1, 2, 3, 5, 7, 8, 20 SIM card Nano SIM card Language Multinational option SOS Support G-sensor Support  (in three axis) Remote monitoring Support Camera 0.3MP pixels  Waterproof level IP67 Battery Lithium battery 650mAh Dimension 232*41.5*16.8mm Other features Electronic fence (GEO), History tracking, Alarm clock, Find watch, phone book, working mode, Remote shutdown watch, support APP for Android and IOS smartphone.

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