The unlocked version of the iPhone 6s ($649; 16GB) takes the doubt away from potential Apple phone buyers who want to be able to freely switch between carriers. With excellent speeds and reception on all four major U.S. Networks, as well as superior performance abroad, the unlocked iPhone 6s delivers a significantly better Internet experience than any previous iPhone. And that's not even getting to its top-notch cameras, faster processor, or the potential inherent in Apple's new 3D Touch feature. That makes the iPhone 6s our Editors' Choice for. There are two iPhone 6s models available from Apple. The A1687 model, which is sold by Sprint, T-Mobile, and Verizon, works very well on all three of those networks, and pretty well on AT&T, but lacks the brand-new Band 30 that AT&T is using to backstop LTE speeds in dense cities. T Mobile Usa Iphone 5s Unlock.
The unlocked iPhone 6s is the same as the AT&T model, A1633, which includes all of the bands on the A1687 model, plus AT&T's Band 30. Phone Unlocking Software For Mac. The iPhone 6s has significant cellular radio improvements for three of the four major U.S. On Sprint, we found that iPhone 6s speeds are 50 percent faster than speeds, because the phone now supports carrier aggregation, which bonds lanes of spectrum together to make a wider road for your data. On T-Mobile, the presence of Band 12 gives the carrier better building penetration and reach into suburban and exurban areas. On AT&T, Band 30 will speed up performance in some congested cities.