Letsfit Fitness Tracker with Heart Rate Monitor, Slim Activity Tracker Watch Pedometer Watch, Sleep Monitor, Step Counter, Calorie Counter, Waterproof Smart Band for Kids Women and Men (Purple)

Letsfit Fitness Tracker with Heart Rate Monitor, Slim Activity Tracker Watch Pedometer Watch, Sleep Monitor, Step Counter, Calorie Counter, Waterproof Smart Band for Kids Women and Men (Purple)

• Heart Rate Monitoring: Monitors your heart rate all day with graph in the app, allowing you to better understand your rest heart rate and heart rate while working out
• Quantification of Movements: Records your steps, calories burned, miles walked, active minutes and more
• Sleep Tracking: Tracks your deep sleep, light sleep, and wake sleep so that you can have a comprehensive understanding of your sleep quality
• Intelligent Reminder: Vibrates to notify you of incoming calls and messages; reminds you to move after periods of inactivity and important dates, helping you stay connected
• Build-in USB Charging: Gently pull bands off the tracker host and insert the built-in USB plug into a USB port for charging; 1-2 hours' charging allows up to 5 days' use

Notes: <br> Requires iOS 7.1 & later or Android 4.4 & later, BT4.0 & later<br> Smartphone only, NOT compatible with PC, iPad or tablets.<br>Compatible APP: VeryfitPro <br> IP67 water resistant, sweat-proof, rain-proof, but do NOT wear it when showering or swimming. <br><br> Sleep Tracking: Automatically tracks your sleep duration and consistency with comprehensive analysis of sleep quality data. <br> Call, SMS & SNS Reminder: Receive call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display. <br> Alarms: Set alarms to wake you up or remind yourself of important dates. <br> Built-in USB Plug: Easy to charge with any USB block and computer; no charging cable and dock needed. One full charge gives you up to 7 days of battery life. <br><br> SPECIFICATIONS <br> Model: ID115UHR<br> Bluetooth Connection Range: 10 meters (32.8 ft.) <br> MCU: Nordic nRF51822QFAC<br> Heart Rate Sensor: Silicon labsSill42<br>Suit for Wrist Size: 5.4 inch - 7.6 inch / 137 - 193 mm Battery Capacity and Battery Type: 45mAh Polymer Rechargeable Li Battery<br> Charging Time: 1hour<br> Working Time: about 5 days <br> Product Weight: 0.63oz/18g <br> Material: host: PC; bands: TPE<br> Working Voltage: 3.7V <br> Screen Size: 0.86" OLED screen