CS5 Smart Wristband Watch Manufacturer warranty applies Model Number: Heart Rate Smart Bracelet:C5S Display Type: OLED Screen Resolution: 160*80 Feature: Wi-Fi, Build in Flash, APP Control, IP67 waterproof Display Colour: Colour Operation System: Android 4.4 and above; IOS 8.0 and above. Camera: No Camera Screen: < 2" Design: SLIDER Function: Calendar, Alarm Clock, Week, MONTH, Remote Control, Countdown, Sleep Tracker, Fitness Tracker, Call Reminder, Message Reminder, Heart Rate Tracker, 24 hour instruction Waterproof: IP67/Life Waterproof Screen Size: 0.96inch Battery: 90mAh