Watch type: 4G Android sports smart watch Appearance Design: Watch Main screen size2.06 inch AMOLED Touch screenG+F Full touch Main screen resolution410*502 Network type:Single SIM card Network modeGSM/WCDMA/LTE Supporting frequency bands2G(B2/3/5/8)+3G(B1/2/5/8)+4G(FDDB1/2/3/4/5/7/8/12/17/20/28F/66,TDD34/38/39/40/41) Key typefictitious QWERTY keyboard +3 pcs Side keys Watch color:Black, silver, rose gold Watch size560.4*47.4*13.6mm Watch weight:70 Operating systemAndroid OS v8.1 Core number: quad core CPU ModelSL8541E Memory3G+32G SIM Card typeSIM card small card Nano SIM card Battery type: Built in battery Battery capacity930mAh Gravity sensorSC7A22H Heart rate sensor: HX3918 Input method: handwriting Call history: Received+dialed+missed calls Address book: Business card style storage message(SMS), recording function, alarm function, timer, stopwatch, real-time weather Calendar function, WIFI, Bluetooth, camera, music and video playback, GPS navigation, etc Audio formatMP3/AAC/AAC+/WMA/DRA/AMR-NB Image formatJPG, JPEG, BMP Video decoding format1920x1080 @30fps;(H.264/MPEG4)Encoding and decodingSupporting formats MPEG4 Encoder,H.264 Encoder,MPEG4 Decoder,H.263 Decoder,VP8 Decoder,H.264 Decoder, Camera: Built in mini camera Camera pixel: 2M pixels Sensor typeCMOS Bluetooth transmission: Bluetooth 4.2 Network functionWIFI Data interface: 4-pin magnetic charging, supports USB function Packing list: Smart watch 1pcs. Data cable 1pcs. Instruction manual 1pcs. Packaging box 1pcs Feature 1 Android 8.1 OS Feature 2 Pull-out rotating camera with 2M pixels Feature 3 Quad core CPU Feature 4 Flashlight Feature 5 Global frequency bands Feature 6 WIFI Wireless fast internet access Feature 7 2.06 inch AMOLED HD screen Feature 8 Heart rate monitoringStep countingMulti sport mode Feature 9 Drink water reminder, sedentary reminder, sleep monitoring