Efanr DZ09 Bluetooth Smart Watch Phone Mate Bracelet Activity Sport Exercise Fitness Sleep Tracker Pedometer with Camera Touch Screen SIM Card for Android iOS Samsung iPhone Smartphone -Black This watch is perfect on Andriod smartphones,it can also work with iPhone as a Bluetooth device,but some functions like Notification Push,Remote capture,Anti-lost are currently unavailable on Apple iphone HD display: High sensitive capacitive touch screen;perfect match technology; The lost function: Seek mobile phone,Tow-way anti lost;Entertainment: MP3,MP4,Camera; Sync function: QQ,wechat,Twitter,Facebook;time,schedule,read message or news;Sport health: Pedometer,sedentary remind,sleep monitoring 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; GSM850/900/1800/1900 four frequency call function call, hands-free, phone records, phone book, Bluetooth phone Android system: This watch supports Android phone's Bluetooth, APP download and connection, you can also push your Android phone APP related application information to the watch; APP not support android 5.0. IOS system: the watch supports Apple phone Bluetooth connection, but don't support Apple phone APP download and connection, so your Apple phone's related application information can't be pushed to the watch