Product parameters: Display: 1.3 inch TFT color screen 240*240 Touch: single touch Charging: magnetic charging Battery: 180mAh Standby time: 30 days Working time: 7 days Shell parts: zinc alloy Strap: TPU/Milanese Memory: Rom 512k ram64k Waterproof rating: IP68 Functional selling point: 24/7 Heart Rate Monitor & Sleep Tracker : Smart watch can automatically monitor your real-time heart rate, and better understand your heart rate trends.You also can get a better understanding of your sleep quality with comprehensive sleep quality tracking ,(deep sleep,light sleep and wake up time) helping you adjust yourself for a healthier lifestyle. Fitness Tracker for Women Men :Our fitness tracker watch has 12 exercise modes help you better understand each specific activity data.including Running, walking, jumping, yoga, mountaineering,badminton, treadmill,spinning,cycling,basketball,swimming,tennis,Accurately record all-day activities.such as pedometer,speed,distance,active time etc. Call And Message Notifications:After Bluetooth is connected to the mobile phone, Whenever you receive a notification, SMS, calls or messages from APP (Facebook, YouTube, Twitter, Messenger, Instagram.) The smart watch vibrates slightly and remind you to view the information on the display, You will not miss any important information. Extremely Long Battery :We use large capacity and low power consumption design, so our watch can be used for more than 7 days, and the standby time is more than 30 days.So you don't have to worry about battery power during exercise or other work and life.The fitness watches are very suitable for outdoor sports, workouts whole day. Smart Watch for Android Phones and iPhone :This smart watch can work with most of the smart phones in the market, only requiring that your phone's system is above Android 6.0 or IOS 9.0, Bluetooth 5.0 and above. The APP ""Wearfit"" can be download from Apple Store or Google Play. Specifications: Single head size: 43.3*36*10.6 (MM) Strap unfolded length: 258*20*2.3 (MM) Product weight: 53.2g