This samsung galaxy core is really bad. When I bought it I just opened its seal and its mike was actually not working till ear plugs were not connected. I compliant to its seller as well as customer care bt no actions were taken. After that I paid rs 2000 than its mike was changed. After tat also so many problems are there like battery, battery power works for just 1hr if I m watching any vedio it will work for hardly 40 min aftr tat battry will die. All the time I have to plug in to charge. Really very bad experience with this phone. Next thing its getting hang if I am opening it to call someone and I am searching no I must have to wait for atleast 2 min to get the no. Again if I connect it to wifi or net I have to wait untill all the texts arrive untill the phone won’t work. Plz dont opt samsung’s phone.