Unlocked iPhone 7 Plus Compatibility Guide

Unlocked iPhone 7 Plus Compatibility Guide


The Unlocked iPhone 7 Plus comes in two models for US carriers: A1661 and A1784. There is also model A1785, but it is intended for Japanese carriers so isn’t considered for this article.

This post is part of our Unlocked iPhone Buyers Guide meant to answer all your questions about buying an unlocked iPhone.

This article will help answer the question: Which unlocked iPhone 7 Plus should I buy for my carrier network? We’ll discuss the model differences, carrier compatibility, and help you choose the right iPhone 7 Plus for Verizon, AT&T, T-Mobile, Sprint or your favorite MVNO.

Unlocked iPhone 7 Plus: A1661 vs A1784

The A1661 is the GSM+CDMA model and works on pretty much any carrier, including Verizon and Sprint. The A1784 is the GSM-only version, sold as the carrier model for AT&T and T-Mobile, and won’t work fully with CDMA networks.

A1661 A1784
  • Verizon
  • Sprint
  • Ting
  • US Cellular
  • AT&T
  • T-Mobile
  • Cricket
  • International

A1661 models have CDMA support which Verizon and Sprint use for 2G and 3G connectivity. The A1784 will not support Verizon’s or Sprint’s CDMA networks, so if you want a phone that works on all four carriers, you need to get the A1661 model.

Both A1661 and A1784 Just A1661 Just A1784
  • Band 2
  • Band 4
  • Band 5
  • Band 12
  • Band 13
  • Band 17
  • Band 25
  • Band 26
  • Band 29
  • Band 30
  • Band 41
  • More not mentioned
  • CDMA
  • none

The A1661 is sold by Apple as the SIM-free model and is typically used by Apple for replacement devices.

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Updated on January 15, 2018 • On iPhone