Original Stock Bluetooth Smartwatch Smart Watch D21 Wristband Bracelet Band Heart Rate Smartband Activity Tracker Fitness for IOS Android Color:Black white.Pink.PurpleNote D21 Smart bracelet product details URL:https://www.youtube.com/watch?v=uZtmCWlJZw0Function:Model: DFit D211.Model: D21 Smart Band2.Memory size: 256k3.Acceleration sensor: triaxial accelerometer4.Strap: medical silicone5.Display: 0.66OLED screen6.Vibration motor: cylindrical vibration motor7.Operation way: touch operation8.Battery Capacity: 80mAh (Standby time will depend on the actual using situation.)9.Waterproof : IP6510.Bluetooth version: Bluetooth 4.011.Rapid brush Metro BUS, can be customized set up the city(Built-in NFC chip)13.Support System:Android phone(Android 4.3 or above and bluetooth 4.0), and iPhone (iOS 8.0 or above and bluetooth 4.0)The main function:Step count, distance, calorie consumptionTime display, Smart alarm clock, smart unlockFirmware UpgradeSedentary reminderMotion TrackingPrecautions:This product contains magnetic parts, has installed a pacemaker or implanted electronic devices or metal objects, please do not use this product.When such wear, symptoms appear, please stop using the product immediately.If you use sub-standard power charging will shorten battery life, and even damage the battery.Our bracelet sealed process, anti-sweat, to meet the daily water, such as hand , etc., but does not support swimming, diving grade waterproof.Package include: 1 * Bracelet 1 * Charging Cable1 * User manual Note:English Note:In order to be able to use, please recharge and then boot.thank you#Jewelry #Watch #Bracelet #Heart #Jewelery & Watches #Fashion Bracelet #Wristbands #Fitness #Bluetooth watch #smartbracelet #smartwristband #Smart Watch #d21bracelet #bluetoothsmartwatch #fitnesstrackerwristband #Bluetooth #sports watch