Vidonn X6 0.88" IP65 Bluetooth V4.0 Smart Watch Wristband Bracelet w/ Sports / Sleep Monitor Caller I.D. and Message Notification Display With Up to 15 Day Standby SMS, Facebook, and Twitter Message Alerting and Multi-Language Display Enjoy Health Fitness Tracking and Sleep Monitoring With a Slim Next-to-Skin Feeling Wirelessly Sync Data for Both Android and Apple IOS Smart Phones and APP Enhancement Bigger Screen 0.88" OLED and Splash Water Resistant With Ultrasonic Technology Joint Melting