top_star GT08 Bluetooth Smart Watch Wrist Watch Phone with SIM Card Slot Smart Health Watch for Samsung HTC Android and IOS iphone Smartphones (Black) Function:Sport health,Pedometer,sedentary remind,sleep monitoring,Message Reminder,Call Reminder,Answer Call,Dial Call,Remote Control,Tow-way anti lost,NFC for quick pairing. QQ wechat TWITTER FACEBOOK etc realtime message, SMS push message, news app push message, system setting, agenda, sync notification 1.54" TFT LCD 2.5D Radian Capacitive Touch Screen 240*240 pixels, OGS Laminating Process Receive notifications on your wrist, including caller ID, texts and emails. Make or answer calls. This watch can also work with iPhone as a Bluetooth device(Means you can receive a call or make a call also sync your contacts to this watch via bluetooth).But Some functions like Notification Push,Remote capture,Anti-lost are currently unavailable on iOS because the iOS app is unavailable now It supports GSM 850/900/1800/1900 MHz Network,Make this watch be a real standalone CellPhone.Enable to make a call or receive a call with a Gsm Sim Card inserted.