Sim Cards are of four (4) Types. Named as Below H1, H2, H3, H4
H1= You Will Get Normal Network On This Sim
H2= You Will Get Better Network On This Sim, Means Strong
H3= You Will Get More Better Network On This Sim, Means Stronger
H4= Normal, Better, More Better Is Nothing In Front OF This Sim.
A subscriber identity module or subscriber identification module (SIM) is an integrated circuit that securely stores the International Mobile Subscriber Identity (IMSI) and the related key used to identify and authenticate subscribers on mobile telephony devices ,such as mobile phones and computers.
It is also a portable memory chip used mostly in cell phones that operate on the Global System for Mobile Communications (GSM) network. These cards hold the personal information of the account holder, including his or her phone number, address book, text messages, and other data. When a user wants to change phones, he or she can usually easily remove the card from one handset and insert it into another. SIM cards are convenient and popular with many users, and are a key part of developing cell phone technology.
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