Function: Passometer Sleep Tracker Message Reminder Call Reminder Answer Call Dial Call Remote Control Push Message Altitude Meter.</br>Compatibility: All Android and iOS Mobile Phone & Android Tablet PC. Android Mobile Phone: Samsung HTC Sony LG HUAWEI ZTE OPPO XIAOMI and so on. iOS Mobile Phone: iPhone 6 iPhone 6 plus iPhone 5 iPhone 5s  iPhone 4 iPhone 4s (This APP can' t be installed by iOS Apple system can' t sync SMS and Bluetooth push information but other functions can be used by iPhone); Android Tablet PC: Samsung Nexus Onda Newsmy and so on.</br>Bidirectional anti loss: Anti lost remind Bidirectional search</br>Entertainment: MP3 / MP4 local playback; Bluetooth music playing</br>NFC: No need to search bluetooth pairing electronic business card</br></br>Product Description</br></br><b>About us</b> <br> <br> PADGENE is registered trademark of Singe and is exclusively distributed by Singe on Amazon. PADGENE trademark is protected by US Trademark Law. <br> <br> <b>Note:</b> <br> <br> This watch is Bluetooth 3.0. All functions support android 4.3 and up smart phones. <br> But for iphone?? not it just support answer & call?? phone book?? music play?? camera?? clock?? pedometer?? phone anti-lost alert. Still not support SMS?? remote camera control?? sleep monitoring?? etc. <br> Pls Make Sure your SIM card is Post-paid SIM card?? and it Support 2G Network: GSM 850/900/1800/1900MHz <br> <br> <b>Parameters