Product model TK26 Product size 47 * 52.8 * 11.8mm Main control chip Realtek 8762D+AC6963A Gravity sensor ST8321 ECG chip top 3228 (high-precision electrocardiogram HRV) Heart rate and blood oxygen chip Osram: SFH2703 Bluetooth LE 5.1 LCD 1.43-inch high-resolution 466 * 466 AMOLED full touch screen Touch control full screen touch control, mobile app control Motor support Charging method: magnetic suction charging Waterproof IP68 waterproof Battery capacity 450mAh high-density polymer lithium battery Machine material: alloy+stainless steel+ECG glass+AMOLED high-definition screen Product Color Matching Silver Frame: Apricot, Pink, Brown Skin, Three Steel Silver Trees Black frame: black, blue, black skin, three steel black plants Function Overview 1. Bluetooth calling, voice assistant, one click SOS assistance 2. ECG measurement, HRV report, APP analysis results 3. Body fat BMI measurement, body composition analysis 4. One click micro examination for quick assessment of physical condition 5. Five organ testing, constantly monitoring the heart, liver, spleen, lungs, and kidneys 6. Uric acid, blood lipids, blood sugar, body temperature, heart rate, blood oxygen, blood pressure, sleep, and stress tests 7. Remote care from family and friends, multiple sports modes, and customized dials in the multi dial market Other functions: women's health, breathing training, high body temperature reminder, high heart rate reminder, message reminder, stopwatch, countdown, step counting, calories, distance, exercise mode, incoming call reminder, alarm reminder, sedentary reminder, hand up screen, social sharing (WeChat,...) QQ, Facebook, Twitter, etc., shake photo, music control, water reminder, medication reminder, WeChat sports access, Apple Health Multi sport mode exercise recording, multi sport mode (pedometer, calorie burning, mileage, display of exercise trend chart for each time period) Message reminder for incoming calls, SMS, email, WeChat QQFacebookTwitterWhatsAppLinkedInInstagramMessengerSnapchatLineKakao TalkViberSkypetelegram Call rejection support Multiple dial selection apps with customizable dials Remote control music controls the phone player to pause the previous and next songs, and can connect to an app to play music on the watch APP Name DeepFit OTA upgrade support App system Android 4.4 and above; IOS 9.0 and above