Hello frends
I phone 4s is very bad phone because storage problem battery backup problem no insert external memory card. Battery is very very bad my phone battery is 76 % suddenly 3% remaning in ice state .But front and rear camera is very nice and screen is very HD.In this phone file sharing problem .iphone and nokia phone map is best for traveling.phone look is nice battery backup os very very big and bad problem in this phone. Thank u frends