Special Feature Activity Tracker Connectivity Technology Bluetooth Wireless Communication Standard Bluetooth Battery Cell Composition Lithium Polymer Shape Rectangular Screen Size 1.85 Inches Brand Nerunsa Model Name P66D Style Modern Color Black Blue Bluetooth Call and Message Reminder: The smart watch is equipped with HD speaker, after connecting to your phone via Bluetooth, you can directly use the smartwatches to answer or make calls, read messages, store contacts, view call history. The smartwatch can set up more message notifications in "GloryFit" APP. You will never miss any calls and messages during meetings, workout and riding. All-day Health Monitoring: This smartwatch has advanced sensors that helps you detect real-time heart rate throughout the day. And it will monitor your sleep status automatically and provides comprehensive sleep quality analysis. Synchronized to the app, you can also get more health details through the "GloryFit". Wear your P66D Smart Watch correctly, not too tight nor too loose, leaving the skin room to breathe. This way not only do you feel comfortable, but the sensors also work properly. 1.85" Touch Screen and DIY Watch Faces: Smart watch with 1.85" HD full touch color screen brings you a unique visual and better interactive experience. Four levels of brightness options allow you to easily read information in the sun or dark. Fitness smart watch has 200+ free watch faces that can be downloaded and used in the app. In addition, you can also select your favorite photo as a wallpaper in the watch. Long Battery Life and Multi-Functions: Smart watch for men women has a built-in large capacity battery, which can be fully charged in 2 hours, can be used for up to 7 days and has a long standby time of about 30 days. Smart watches and "GloryFit" app have many practical tools, such as weather forecasts, stopwatch, timer, music control/ play, adjustable brightness, find phone/ watch, breathing training, smart alarm clock, camera control, women health, sedentary reminder, ect. 110+ Sports Modes and IP68 Waterproof: Sports smart watch can provide 100+ exercise modes, such as running, yoga, jumping jack, sit-ups, etc. During your exercise, it will record your data like heart rate, steps, calories burned, distance and active hours in real time. The fitness tracker is IP68 waterproof so you can wear it during outdoor activities, rainy day, washing hand.