What Are Dual SIM Phones, And Do You Need One?

What Are Dual SIM Phones, And Do You Need One?:

Ever heard of dual SIM phones? My guess is you probably have. I can also guess you know what dual SIM phones are; after all, it’s not very hard to understand that a dual SIM phone has two SIMs. If you’re anything like me, though, this is about as far as you got.
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