COMPATIBILITY - Samsung, HTC, Sony, LG, HUAWEI, ZTE, OPPO, XIAOMI, Lenovo and all other Android phones, All functions work for Android phones. (Attention for iPhone, the APP can' t be installed in iPhone, Our watch can only receive and make call, Pedometer, Calendar, Clock, Music player, Hands-free for IPhone, other functions not work for IPhone.)</br>MAIN FUNCTIONS - It runs Facebook, Twitter, WhatsApp independently when you put SIM card and TF card in this watch. This watch Also have Pedometer, alarm clock, sleep monitor, remote camera, sedentary remind, calendar, voice recorder, MP3, muti-language.</br>USE AS A INDEPENDENT PHONE - If put a SIM card into the watch, you can make phone call directly from the smart watch, including answering and dial-up. If don't put SIM card, you can connect watch with your phone by Bluetooth, then you can make phone call, including answering and dial-up by the watch too.</br>Capacitive full color display- Three stylish watch faces and an adjustable band perfectly paired with 1.54" TFT LCD 2.5D Radian Capacitive Touch Screen 240*240 pixels</br>If you have any confusing problem of watch what you had received, Before return or leave complains, please contact us by E-mail. We will do anything to ensure customer to be pleased. Include 100% money back and resend.</br></br>Product Description</br></br>Package Includes<br> 1 x SEPVER GT08 Bluetooth Smart Watch (Battery Included)<br> 1 X USB Charging Cable<br> 1 x User manual<br> <br>Note: <br> Please open the rear cover and put the battery into the base according to the arrow of direction mark. <br> <br> Important Features <br> Micro SIM card (Frequency GSM/GPRS 850/900/1800/1900) (not included) <br> Maximum support 32GB SD card (not included)<br> <br> FAQ <br> 1.What is required Android version and Bluetooth version for a smartphone to work with this watch? <br> For Android phone, it supports Android version 3.0 or higher.For iPhone, it supports iOS 7.0 or higher. <br> 2.How to understand that it can be used as a standalone phone? <br> When you insert a micro SIM card & SD card, it can be used to make calls, recieve or send texts and visit the website. <br> 3.How to download APK? <br> APK is the abbreviation of Android Package including BT Notification Android,Fendo APP Android.Can download from Geogle. BT Notificationsupports notifaction push including texts , calls, Facebook & Twitter,anti-lost, remote camera. <br> <br> APK Download <br> Open the QR code device >Scan it by the scanner >Install the APK on your Android smartphone. <br> <br> Note: <br> 1.It works perfectly for Android phone,but for the IOS system(Iphone):It only support answer phone,receive text, Clock, Music player,Handsfree. you can insert a SIM card and memory card as a stand alone phone to use.<br> 2.About push messages from Whatsapp, Facebook and Twitter,need to insert SIM,SDcard.<br> 3.Support card from Unicom, mobile's company<br> <br> If screen cant work,please check the watch's power firstly. If have any problems,please don't return it,just E-mail us , we will provide a solution better than return.</br><br/>http://www.amazon.com/gp/product/B01NCT1HRU