1.39'' HD large screen, gives you a larger and clearer experience, colorful colors, cool fashion agile operation more convenient to view data Using the new nano chip technology, single-core dual-mode dual-call, only needs a simple connection to Bluetooth, and strong movement to ensure a strong smooth operation experience One-click to connect the phone Bluetooth, and call information on the watch. Your phone book call records, you can see on the watch, so that you can talk time and anywhere Smartwatch and TWS perfect combination, carrying, driving, sports, music, and headphones can be taken out with the mobile phone to wear in the ear Built-in 400mAh large battery, offline standby for more than 50 days, no matter daily use or remote travel, there is no electricity anxiety Back home, the watch also access lock, just raising the wrist close to the NFC door lock can quickly open the door, no longer have to worry about forgetting the password and feeling annoyed 24/7 health monitoring protects your health, scientific care for your health, heart rate, true blood oxygen, blood pressure exercise, alarm clock, stopwatch, etc., readily available you can view the corresponding records at any time health conditions to see, always pay attention to your personal health Sleep simultaneously monitor your sleep duration and sleep quality. Record deep sleep, light sleep, and view sleep trends through the APP to help improve sleep quality Each watch factory has been strictly waterproof and airtight testing, waterproof and dustproof washing hands do not need to take off Specifications: Hardware Description Remarks Main Chip Realtek 8763EWE+TWS   Memory 128M   Accelerometer SC7A20   Screen HD IPS true color screen Screen Size 1.39   Resolution 360*360   Blood Oxygen 3605 dynamic measurement √ Dynamic Heart Rate Exercise heart rate curve, 3605 √ Touch Screen touch √ NFC   √ Ambient Temperature Working temperature 0-40℃ Charging (input) Magnetic cable charging, 5V/250mA √ Watch Bluetooth Bluetooth-compatible LE 5.2 √ Output 5V/60mA, watch battery 400mAh √ Headphone Bluetooth Bluetooth5.0, support for Apple, Android system √ Headphone Detection Dynamic charging detection display status, indicator light √ Headphone Buttons Supports touch buttons, previous song, next song, answer/hang up √ Headphone battery 30mAh √ Headphones Playtime 5h √             System Software Description Remarks Android System Supports Android 4.4 and above √ IOS System Supports IOS9.0 and above √ UI Style 8 sets √ Watch Local Play   × Pedometer/Calories   √ Sleep Monitoring   √ Vibration Motor   √ Alarm Clock Reminder   √ Dial-up Call   √ Reject Call   √ Recording   × Stopwatch   √ Multi-sport Mode Walking, running, badminton, football and more than 100 sports modesSedentary reminder √ Sedentary Reminder   √ Incoming Call Reminder/SMS Reminder Android and iOS push incoming call and message content √ Other Pushes SMS, WeChat, QQ, Twitter, Facebook, etc. 10 kinds of pushes, all pushes are optional √ WeChat Sports Join the WeChat sports leaderboard (customizable private WeChat public account) Chinese language support Dynamic Heart Rate Dynamic heart rate histogram display and analysis √ Remote Photography click, shake √ Dial Selection Dial selection, APP custom dial √ Remote Music Control the mobile phone player to pause the previous song, the next song √ Aerial Upgrade   √ Multilingual Firmware support languageChinese, Traditional Chinese, English, German, Korean, Spanish,  Japanese, French, Russian, Arabic, Ukrainian, Italian, Portuguese √   APP support languagear - Arabicbg - Bulgariancs - Czechda - Danishde - Germanes - Spanishfi - Finnishfr - Frenchhi - Hindihr - Croatianin - Indonesianit - Italian ja - Japaneseko - Koreannb - Norwegiannl - Dutchpl - Polishps - Pashtopt - Portuguesero - Romanianru - Russiansv - Swedishth - Thaitr - Turkishuk - Ukrainianvi - VietnameseSimplified ChineseEnglishTraditional Chinese √ Package included:1 x Smart Watch1 Pair x Headset1 x Charging Cable1 x Multi-language ManualOther items not included