Software is getting developed, hardware is being tested, and carriers are preparing their betting on a 5g future | straight talk But it won’t be long now until the fifth generation of wireless technology, known as 5g, becomes available. Iphone Mobile Phone Iphone Apple Iphone 6 Apple Iphone Its 100% working for me on a tmobile sim. Does straight talk have 5g phones . I really want to keep the phone, but i do not like at&t's service so i can either switch back to verizon (an extra $40 for unlimited data) or send the phone back. Straight talk wireless has the latest and greatest smart phones and payment plans including the samsung galaxy s21 ultra 5g. Straight talk wireless has the latest and greatest smart phones and payment plans including the samsung galaxy s21 5g. Straight talk has 5g on tmobile sims. Do not call customer support because they are complete idiots and know nothing. Coverage is on their 4g lte networks so there could be data speed differences if the...