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Info

Apple lists the LTE band support of its iPhone models on this page: iPhone LTE Support. It lists more information about the iPhone 6s models on this page, specifically in the Cellular and Wireless section: iPhone 6s - Tech Specs

Here is a comparison of the iPhone 6s/6s Plus models' cellular specs as of the time of writing this question, noting certification differences in the four major US carriers:

A1633/34 (Certified US support: AT&T)

  • LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30)
  • TD-LTE (Bands 38, 39, 40, 41)
  • TD-SCDMA 1900 (F), 2000 (A)
  • CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz)
  • UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
  • GSM/EDGE (850, 900, 1800, 1900 MHz)

A1687/88 (Certified US support: Sprint, T-Mobile, Verizon)

  • LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29)
  • TD-LTE (Bands 38, 39, 40, 41)
  • TD-SCDMA 1900 (F), 2000 (A)
  • CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz)
  • UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
  • GSM/EDGE (850, 900, 1800, 1900 MHz)

Question

It appears that the only difference between the two model pairs is the absence of support for LTE band 30 in the A1687/88 models. Am I missing something? Why wouldn't they just make one model pair for US customers (A1633/34)?

  • I just spoke (on the phone) to a "technical engineer" at Apple who told me that the difference between models is indeed only support for LTE band 30. – jsejcksn Sep 24 '15 at 17:27

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