There are five Pixel smartphones with 5G support but not all of them support the three main 5G spectrums which are Sub-6 GHz, mmWave, and C-Band. Network compatibility is a factor that is important to consider when picking up a phone, as it can make or break the experience of using the device. While most phones usually have a wide range of supported bands, some network operators use a particular band that the device may not support.
In some cases, manufacturers launch variants of their phones in partnerships with a carrier. This carrier model will support all the bands the operator uses, and customers can purchase the device from their carrier knowing that it will work seamlessly. The non-carrier variants, also referred to as unlocked models, may lack some bands, and might not work with some carriers depending on the region.
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In a community post, Google confirmed that its latest smartphones, the Pixel 6 and Pixel 6 Pro, have been certified for C-Band on Verizon's network, thus allowing owners of these phones to connect to Verizon's C-Band where available. However, in the same post, Google also revealed that the Pixel 4a 5G, Pixel 5, and Pixel 5a 5G, which support C-Band at a hardware level, aren't enabled for C-Band in the United States. These three phones will continue to support Sub-6 and mmWave networks provided by operators in the country.
While this is disappointing news for owners of the Pixel 4a 5G, Pixel 5, and Pixel 5a 5G, it is only limited to the U.S. These same phones are sold in some other countries and have C-Band enabled. Google didn't say why it is not enabling C-Band in the U.S., but did use the “At this time...” phrase, suggesting it may
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