Help with internet on iPhone 5

Question

I bought my white iPhone 5 in July of last year from Walmart. I paid $650 for it, then drove to an apple store and purchased insurance directly from Apple for $100. The service provider I have is Straight Talk which is $45 per month for unlimited talk, texts, and internet. The only problem is, my phone is extemely slow when I try to use the internet and often the internet does not work at all. I thought it was becuase of the area I live in, but my dad bought a Galaxy s3 and uses the same Straight Talk service as I do and his internet works almost always. I do not want to give up my iPhone for a different brand because I like it, but I need internet to work without using wifi.

Answer 1

Straight Talk is an MVNO that provides service using other carriers networks. They have service available on both GSM and CDMA networks. The iPhone sold by StraightTalk is a CDMA phone.
Make sure the account is properly provisioned for LTE service. It is possible that your father is using a GSM device which operates on a different network entirely.  It's possible the data coverage in your area is much better on the GSM network than it is on the CDMA network.