Lenevo vibe s1 is good feature and this is a very usefully and helpfull this mobile battery is very large. so do not problem battery low. lenevo vibe s1 camera is so good perfect picture quality and perfact video shoot. this mobile gesture is very good.so I suggest buy lenevo vibe s1.this mobile ram is good so not hangging problem .and very simple usefull and is proccesor so good so many problem easily solve and no hangging problem.