NOTE: About rotating the screen. Since many commonly used apps are themselves designed based on the vertical screen of the phone, and thus are displayed in landscape in the watch. If the APP used itself does not have the automatic rotation function, then it is the same in the watch can not be rotated, please don't mind, this is a normal phenomenon. On the other hand, since the watch will be smaller than a smartphone, the watch landscape display will be more readable and usable!NOTE: The smartwatch is an independent system that supports the use of SIM cards and does not support the connection of APP. HD Video Call Support incoming call reminder, high-definition answering calls, making calls, and even video calls. SIM card: Nano SIM Internet 2G/3G/4G 5.0MP + 13.0MP Dual Camera Frequency Band GSM: 850/ 900/1800/1900 WCDMA: B1/B2/B5/B8 TD-SCDMA: B34/B39 LTE-FDD:B1/B2/B3/B5/B7/B8/B12/B17/B20 LTE-TDD:B38/B39/B40/B41(100MHz) Camera: 5.0MP+13.0MP Provide GPS Positioning Generate trajectory maps and professional data analysis to allow you to better manage health activities and provide GPS positioning. Smart game console Team up and play games with teammates anywhere. Is a good helper for life and entertainment. Wifi Support: 2.4g/5g GPS: GPS+Go Support Movie Playback Support language: Chinese version Foreign versions of Chinese, English, German, Spain, French, Indonesia, Italy, Netherlands, Norway, Poland, Portugal, Vietnam, Turkey, Greek, Russian, Ukrainian, Hebrew, Persian, Arabic, Thai, Korean, Mangala, Hindi (this is a more accurate translation language) the other 100 languages are not translated Very accurate Play Music Information reminder: After connecting with the mobile app Bluetooth, the watch will timely remind you of phone calls, SMS, QQ, wechat, twittre, Facebook, WhatsApp, Skype and other information. Bluetooth off shortcut key The user can turn off or start the Bluetooth push function of the mobile phone according to the actual function, so as to appropriately reduce the power consumption of the watch and turn on (or off) Aluminium Alloy Case Display screen: 2.88 "TFT Touch Screen Rectangular Full Touch Resolution: 480*640 Large Touch Screen Full-time display: 1)Date, week, clock and minute (real time display); 2) Time system: 12 / 24-hour dual system; 3) After the mobile phone app Bluetooth connection, the watch automatically reads the mobile phone time, date, format and synchronizes. IP67 Waterproof The IP67 life waterproof rating, just like a smart phone, cannot be immersed in seawater for a long time. Support Heart Rate Monitor Heart Rate Sensor: Tianyi Hexin hrs3300 Walking movement monitoring: Accurate monitoring of walking (steps), physical expenditure (calories), walking distance (km) 2300mAh Large Battery Battery Capacity: 2300mAh Battery Life: 3 days Charging Method: Magnetic charge Charging Time: 3 hours MTK6761 4GB RAM + 64GB ROM CPU: MTK6761 RAM/ROM: 4GB+64GB System: Android 9.0 Bluetooth: 5.0 Bluetooth effective distance >10m (open environment) Classic Colors To offer you a choice Using the classic mainstream black, silver, gold Support system: Android: support the original operating system version 6.0 and above, (settings - about the device, check the Android version) IOS: support system version 11.0 and above. You can check the version of this phone by setting general on your phone. If it is lower than 11.0, please upgrade it first Removable Strap It supports the manual selection of language on the watch, answering and making calls, phonebook, sending SMS, downloading third-party app, video call, photo taking, alarm clock, calendar, calculator, recording, local music playing, weather, voice search, step counting, heart rate, multi exercise mode, looking for mobile phone, stopwatch, music control, holding up the hand to light the screen, changing the dial, pushing messages, etc Product Size Material technology Watch Case: aluminium alloy Button: aluminium alloy Strap material: silica gel Head size: 77.2*53.6*15mm Strap size: 32mm width, Total Length: 288mm, Adjustment Range: 190-270mm