1.53 inch Front Camera Smart Watch Support AI Voice SIM Card 1. Supports clock, main interface, middle layer, text messages, phone calls, address book, settings, step counting, calculator, browser, recorder, calendar, search, video, gallery, downloads, music, alarm clock, camera, voice assistant, Course schedule, heart rate, weather, application market, OTA online upgrade, super power saving mode, input method, WeChat, Alipay, QQ, etc. 2. Processor type: Spreadtrum UWS6137 (W377), Dual-core Arm Cortex A53 processor, up to 1.3GHz 3. Graphics processor GPU: Mali T820 MP1 384MHz 4. Power management PMU: supported 5. WIFI+Bluetooth: WIFI: 2.4GHz 802.11b\g\n, BT: V4.2 low energy 6. Positioning: Support GPSBeidouGlanas, support WIFI2.4G, support BT 7. Support UIM cardSim cardNFCMIC 8. Display: 1.53 inches Resolution: 360X356 9. Battery: 700mAh polymer lithium battery 10. Network: 2G: B3B5B8 3G: B1B5B8 4G: FDD:B1B3B5B7B8B20, TDD:B34B38B39B40B41 11. Video format: (supports high-definition 1080P) VIDO DECODE support support 12. Audio format: MP3AACAAC+WMADRAAMR-NB 13. Image format: JPG, JPEG, BMP 14. Video decoding format: 1920x1080 30fps; (H.264MPEG4) codec; supported formats MPEG4 Encoder, H.264 Encoder, MPEG4 Decoder, H.263 Decoder, VP8 Decoder, H.264 Decoder 15. Camera pixels: 30W 16. System: Android 8.1.0