Notes:<br />1. Be compatible for Android (os 4.3 or above and bluetooth must be 4.0 or above); for iphone (os 7.0 or above and bluetooth must be 4.0 or above)<br />2. Normal standby time lasts for 3 to 5 days｣ｬ while standby time can only last for 2 days if  heart rate monitor and  palming bright screen open all day.<br /><br />Introduction:<br />This DFit smart wristband with OLED screen clearly displays health parameters including time and date｣ｬ steps｣ｬ distance｣ｬ calories  as well as heart rate. With  adjustable wristband and light weight feature｣ｬ you can wear it to do exercise｣ｬ such as running｣ｬ climbing. When you do exercise｣ｬ it can record your sports data. When you sleep｣ｬ it will monitor your sleep. It can also wake you up by vibrating gently. All those data can be synchronized and analyzed on your smart phone. High performance and advanced smart features are the best advantages so that DFit smart wristband is your indispensible personal fitness companion. It's our pleasure to provide you a funny and healthy life.<br /><br />Main Features:<br />1. Display Health Parameters<br />This smart wristband can display the time｣ｬ date｣ｬ steps｣ｬ distance and calories clearly. Let you know your sports data immediately!<br />2. Sync Sports Data<br />When bluetooth paired your smart phone｣ｬ you can sync your data to Android phone and IOS phone. It gives you a real-time assessment of your exercise throughout the day.(APP:HPlus Watch)<br />3. Heart Rate Monitor<br />It can monit