THE BLUETOOTH SMART WATCH WORKS WITH IPHONES; 4, 4S, 5, 5C, 5S, ANDROIDS, S2, S3, S4, NOTE2, HTC NOKIA AND OTHER DEVICES THAT COMMUNICATE VIA BLUETOOTH. IT'S A REGULAR UNISEX EVERYDAY WATCH, AND IT'S YOUR LINK TO THE OUTSIDE WORLD AND YOUR MUST HAVE TO SOCIAL MEDIA! YOU CAN CONNECT TO YOUR PHONE, MAKE AND RECEIVE CALLS, ACCESS YOUR CONTACTS, AND CALENDAR. YOU CAN SET AN ALARM AND IF YOUR PHONE IS MORE THEN 15 FEET AWAY, IT WILL SOUND. NO MORE HUNTING FOR YOUR PHONE AT THE LAST MINUTE! USE YOUR WATCH AS THE REMOTE TO TAKE PICTURES FROM YOUR PHONE. SO MANY OPTIONS! HAS A STOPWATCH, ALTITUDE METER, PASSOMETER/PEDOMETER TO TRACK YOUR STEPS EACH DAY! IT'S MADE OF STEEL AND SILICON. DURABLE AND EASY TO CLEAN! FACE OF WATCH MEASURES: 1.81 X 1.65 X .39. FITS A WIDE RANGE OF WRIST SIZES! WATCHES ARE STRAPPED.