Anysun&reg; Bluetooth Smart Watch Wristwatch U8 Uwatch Fit for Smartphones IOS Android Apple Iphone 4/4s/5/5c/5s Android Samsung S2/s3/s4/note 2/note 3 HTC Sony Blackberry (White) Apple IOS system cannot sync Message and Bluetooth notification, not apply for APK function. 1.48" Capacitive Touch Screen TFT LCD + Bluetooth V3.0+EDR Transmitting Range: 10m Sync SMS/call history(only for android phone, you need download apk) Ring reminder when your smart phone receive a message . Answer or Dial calls from your wrist Bluetooth Version: V3.0+EDR Bluetooth Ringing reminder when you receive a call. Ringing reminder once your mobile phone disconnected. Protocol: A2DP + HFP 1.5 + HS P 1.2 Range of Frequency: 2.4GHz spectrum