I own a iPhone 4s and was worried about the mentioned 4G capability. But first the setup: The item ordered has been delivered in about 1,5 week, which is not too good, but I'm fine with that. I activated it over the internet, it was very fast and took me about 0,5-1 hours, the SIM card has been activated immediately. The item mentiones 2g and 4g but the iPhone 4s doesn't have the 1700mhz frequency which is responsible for 4G or LTE. But what did the iPhone do? It worked on a different frequency and used 3G instead. About a week later the t-mobile settings have been updated and the iPhone said: 4G! I couldn't believe it, so I made speedtests. This leads to the conclusion, that it shows 4G, t-mobile counts the traffic as 4G, but it is actually 3G speed and I am perfectly fine with that, so internet is something I don't have to worry about anymore! Texting and Calling works perfect.
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