This is the best Fitness Smart Watch for Men Women Kids for Health & Activity Tracking. This smart watches will only work after installing fitness smart watch application “FitPro” App from App Store or Google Play. Switch ON bluetooth and location while connecting fitness band from app to set time, call, message, alarm & social media notifications. Bluetooth 4.0 Compatible with all smartphones. You will receive only notification to See Calls & Messages on Your Wrist: Receive/Rejection call, calendar, SMS and SNS (Facebook, WhatsApp, Instagram, and Twitter) notifications reminder on display, Fitness activity tracker smart bracelet watch let you never miss the messages that matter. You can accurately track All-Day-Activities including steps, Moving distance, Step count, GPS tracking, Sedentary reminder, Blood pressure testing, Calories burned, Blood oxygen, Heart rate and Sleep monitor for your best health protection. Charging Support in this watch it has built USB port, Watch Dial converts into charging Dock/Jack, just remove the strap from watch carefully and plug the Watch DIAL from dock side into your mobile USB Charger/Adaptor. The watch charging time about 2 hours and lifetime is up to 2 days. The band strap material is (TPU) which safe and durable for long time travel and Free Size - Adjust the size of the wrist according to the adjustment hole with Buckle belt