Efanr A PLUS Bluetooth Smart Watch Phone Mate Wristband Activity Sport Exercise Fitness Sleep Tracker Pedometer With SIM and Camera Support NFC for iPhone Samsung Android Smartphones Black This smartwatch only support android Smart Phone Bluetooth Sync and only has android app, Do not support iPhone IOS Bluetooth sync. All functions are compatible with andriod 4.3+ smartphones; For iPhone,it only supports part of the function, such as answer & call, phone book, music play, camera, clock, pedometer, phone anti-lost alert. Still not support SMS, Radio, remote camera control, sleep monitoring, etc Photograph: watch photograph; local memory storage; image display: PNG, JPG Camera watch mobile phone to mobile phone remote control; storage; image display: PNG, JPG Compass: support Other functions: alarm clock; calendar stopwatch; calculator; Bluetooth push information: QQ, Twitter, Facebook, micro letter timely information; message push; news client information, system configuration information; schedule; synchronization settings remind; time synchronization; Can use this watch as a phone with an active sim card! Features: GSM 850/900/1800/1900 MHz , Single Micro SIM Card CPU: 533MHz MTK6260A Memory: 128M+64M, Suport Tf card Maximum 32G Display: 1.5'' inch TFT HD LCD; 240*240 px Bluetooth: V3.0 Camera: 1.3M Battery: 450mAh Polymer Acceleration sensor: 3D acceleration, step counting analysis sedentary reminder, sleep monitor, Anti lost, remote camera NFC Support Call function: GSM/GPRS 850/900/1800/1900 four frequency call; Dial, hands-free, phone records, phone book; Bluetooth headset; Message: local SMS; SMS Bluetooth synchronization push; Entertainment: MP3, MP4, AVI format for local playback; Bluetooth music player; Reminder: the bell and vibrating alert; The clock display: 3 sets of clock display, click the heart free switch; switch; Bidirectional anti lost: anti lost to remind; bidirectional search; Pedometer: exercise step counting, calorie consumption calculation, the movement distance record; Remind: Sedentary long seat to remind; Sleep monitoring: monitoring the quality of sleep;