1. Model: ALT-AL102. Communication name: HUAWEI Mate X53. Capacity: 12GB+256GB / 12GB+512GB / 16GB+512GB (optional)4. Memory card type: NM memory card, supports expansion of 256GB NM memory card (not included)5. Sensors: ambient light sensor, proximity sensor, infrared sensor, fingerprint sensor (side fingerprint), Hall sensor, gyroscope, compass, NFC, barometer, gravity sensor6. Featured functions: Two-way Beidou satellite messages, follow-up emoticons, AI air-to-air control, camera treasure box, adaptive UI engine, 3D dynamic weather screen-off display, up and down/left and right split screens, smart multi-windows, super night view, super macro , macro video, video HDR Vivid, micro movie, Xiaoyi smart voice, smart screen-off display, transfer station, smart payment, low battery emergency mode, hyperspace storage compression, universal card, large folder, mask face recognition , Hyper Terminal, audio sharing, AI subtitles, cross-device clipboard, privacy center, super privacy mode, security center, pure mode, multi-camera, smooth call, distributed communication, smooth large file flash transfer, multi-screen collaboration , smart screenshot, smart vision, Huawei sharing, Huawei printing, wireless screen projection, application clone, password safe (Note: Mate Activated with the App. This function is only available in mainland China (excluding Hong Kong, Macao and Taiwan). Smart terminals that receive messages refer to terminal devices that can send and receive text messages