Most lovable watch I have ever baught in my life.I baught it few months before and its still working in good condition .It does not support any type of memory card or sim in it but it is been connected to blutooth via mobile phone so that we can make a call , can play music and do many things on it.its blutooth connecting range is not so long but still it looks too much fashionable in our hand when we do all things on it .it does not contain any button rather it is screen touch like smart phone.battery life is about 10-12 hours in normal condition and if you play music then it reduces to 5-6 hours.