Efanr 2015 Newest OLED Bluetooth Smart Watch Bracelet Exercise Smartwatch Running Wristbands Sports Watches Luxury Fitness Health Tracking System Wrist Watch Women Men Cell Phone Mate Partner Pedometer Step Walking Distance Calorie Counter Activity Tracker Sleep Monitoring Altimeter Thermometer Anti-Lost Dial/Call Answer/SMS Reminding/Stopwatch/Music MP3 Player/Phone Book/ Burglar Alarm with LED Display for Android 2.3+ IOS Smartphones, Compatable with Apple iPhone 6 Plus 5S 5C 4S HTC One M8 Lenovo Nokia Lumia One Plus One Oppo Xiaomi Sony Xperia Z3 Huawei LG G3 Nexus Samsung Galaxy Note 4 Note 3 S6 S5 S4 S5 Active (Blue) Features:Display the number or name of incoming calls. Answer or Dial calls from your wrist.(After Bluetooth Paring) Compatibility:Compatible with all Bluetooth V2.0 or above enabled smartphones, tablets and PCs(IOS Android Apple iphone 4/4S/5/5C/5S Samsung S2/S3/S4/S5/Note 2/Note 3 HTC Sony Blackberry etc.) Support phone call answering and call; Supports two kinds of talk mode handset and speakerphone; Support for mobile terminal with the date and time display , and can customize the date and time; Support phone contacts with significant; Support stopwatch / alarm function and select custom ringtones With significant support phone call records and phone aside; SMS with significant support and micro-channel , QQ alert; Support anti-theft feature; Support of the provincial point mode; Support Bluetooth music It doesn't support SIM Card/Micro SIM Card/Nano SIM card.