[Large Round Screen] 1.46 inches super HD screen, 360x360 resolution HD field of view, display effect vivid and gorgeous [Whole Day Health Guard] Take care of your physical and mental health with high-performance optical sensors [Dedicated Sleep Coach] Record your sleep duration and quality in real-time, and give a reasonable sleep index to help improve sleep quality [100+ Sport Modes] Provide more detailed exercise data, including exercise time, step count, calories and more, to give you more insight into your athletic performance [Deep Waterproof] Precision manufacturing technology, advanced waterproof technology, to achieve super waterproof, easy to cope with various tests of waterproof Specifications: Catalog Product parameters Basic parameters Bracelet size Φ46*10.4mm weight 41.2g Major function 1.46-inches 360*360 Pixels large screen, full screen touch, call function, heart rate, blood oxygen, blood pressure, pressure, sleep monitoring, exercise recording (step count, distance, calories), exercise mode, voice assistant, APP exercise push, message push, information storage, weather, breathing training, women's health, stopwatch, timer, alarm clock, calendar, photo control, music playback, payment code, business card Hardware parameter Chip maker Bluetrum chip BT8959T APP FitCloudPro Compatible system Android9.0+(contain) iOS 12.0+(contain) FLASH memory Rom128Mb Type IPS screen size 1.46 inches Pixels 360*360 Pixels Touch type Full screen touch Connection parameters BT 5.3 Bluetooth Low Energy Chip WIFI NO NFC NO Sensor G-Sensor STK8321 Gyroscope NO heart rate LC09A GPS NO Battery Battery type Lithium polymer capacity 300mAh Charging mode Magnetic APP software features FitCloudPro Steps, sleep, heart rate, blood oxygen, blood pressure, pressure, breathing training, exercise data recording, female physiological cycle, gaming, more dials, etc. Dial selection, message push, daily alarm clock, camera control, weather information, wallet, business card. Find bracelet, time format, do not disturb mode time, all-day heart rate test, turn the wrist bright screen. English, Simplified Chinese, Traditional Chinese, German, French, Arabic, Czech, Greek, Spanish, Japanese, Persian, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian Other parameters Waterproof Level IPX8(1ATM-10 meters waterproof) Charging time About 2.5H Life time About 7 days of use, 15 days of standby Product language Simplified Chinese, Traditional Chinese, English, German, Russian, Spanish, Portuguese, French, Japanese, Arabic, Dutch, Italian, Czech, Greek, Hebrew, Hindi, Indonesian, Korean, Malaysia, Persian, Polish, Thai, Vietnamese, Finnish, Romanian, Turkish, Croatian Wristband size Total length about 255MM, adjustable length about 155-235MM Appearance size Body: Aluminum alloy + plastic + zinc alloy Wristband: Silicone