There are many Sims that at use in this time. but many people says that Airtel is best because it is 4G . but I say you that Idea is coming soon with 4G . There are many features in Idea . 1) It is also give best offers for New User and also old users. 2) It is High speed of internet searching and downloading . 3) It is also a right sim card for you. So Its you choice. But I says that Idea Sim is best Sims for Smartphone. I’m also use Idea Sim. for best offers chosse Idea.EK SIM NO BADAL DE AAPKI DUNIYA. ok. by