LETSCOM Fitness Tracker with Heart Rate Monitor, Slim Sports Activity Tracker Watch, Waterproof Pedometer Watch with Sleep Monitor, Step Tracker for Kids, Women, and Men

1. Compatible with iOS 7. 1 or later/Android 4. 4 or later smartphones. NOT for PC, iPad or tablet. 2. IP67 water resistant, sweat-proof, and rain-proof, but do NOT wear it when showering or swimming. What You Can Get: Call, SMS & SNS Reminder: Easily receive call, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on your wrist. Activity Tracking: Records all-day activities like steps, distance, calories burned and active minutes. Sleep Tracking: Automatically tracks your sleep duration and consistency with comprehensive analysis of sleep quality data. Reminders to Move: Reminds you to move when you¡¯vet been sitting so long. Silent Alarms: Set silent vibrating alarms to wake you up or remind yourself of important dates, meetings, and interviews, etc. Built-in USB Plug: Easy to charge with any USB block and computer. Pull the bands off the tracker host and insert the built-in USB plug into a USB charger for charging, no charging cable and dock needed; up to 7 days of battery life. SPECIFICATIONS: Model: ID115U HRMCU: Nordic nRF51822QFACHeart Rate Sensor: Silicon labsSill42Battery Capacity and Battery Type: 45mAh Polymer Rechargeable Li Battery Charging Time: 1-2 hours Working Time: about 7 days Product Weight: 0. 63oz/18g Material: host: PC; bands: TPE Working Voltage: 3. 7V Screen Size: 0. 86" OLED screen