Buyee Dz09 Bluetooth Smart Watch Sync to IOS Smart Phone and Other Android Smartphones 1.Aipker DZ09 smartwatch Compatibility: All Android and iOS Mobile Phone. 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) 2.Aipker DZ09 Smartwatch Functions: Passometer, Sleep Tracker, Message Reminder, Call Reminder, Answer Call, Dial Call, Push Message. 3. Anti loss: Anti lost remind Bidirectional search, 4.Phone function: Make phone call directly from the smart watch,including answering and dial-up.SIM slot,support make calls by Bluetooth or smart watch 5. SIM card support : GSM/GPRS 850/900/1800/1900