Internet access for unlocked iPhone 4?

My friend is selling me her unlocked iPhone 4 and I was wondering if I can use it without getting charged for data usage, if I use only the Wi-Fi from my house to go onto the internet and apps like instagram… Will I get charged?

No you won't. Just make sure that you turn off "Celular Data" in the Settings menu of soon-to-be-your iPhone 4.

There are some Wi-Fi Hotspots that require you to pay though like in malls and cafes.

No Wi-Fi is always free.

No you need a data plan even the iphone is unlocked.

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