Apple jumped on the 5G train in late 2020, starting with the iPhone 12, and subsequent iPhone models released since then have launched with support for the fifth-generation network. However, not all iPhones have the same 5G support. 5G bands can be classified into three categories – sub-6GHz (Frequency Range 1), mmWave (Frequency Range 2) and C-band 5G. The first has a broader range but slower speeds, not too different from 4G, while mmWave is known to be way faster but uses shorter waves which can easily be obstructed.
On the other hand, C-band balances the two by providing fast speeds and better range. All four models of the iPhone 12 series and those of the iPhone 13 series have a 5G modem. Furthermore, the iPhone SE (3rd generation) launched in March 2022 also has 5G support, making it the cheapest iPhone compatible with 5G networks. The iPhone 11 is the only model still officially sold by Apple that doesn't have 5G support.
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Just because a device has support for 5G doesn't mean it will work with all 5G frequency bands, and that applies to the iPhones too. While most countries with 5G networks use the sub-6GHz standard, others, such as the U.S. and Japan, use both sub-6GHz and mmWave. Similarly, not all iPhones support both types of 5G networks. According to Apple's cellular page, all the iPhone 12 and iPhone 13 models support sub-6GHz 5G networks. The iPhone SE (3rd generation) also has support for sub-6GHz networks.
However, the number of supported bands varies depending on the model sold in a particular region. For example, the U.S. models support more bands than those sold in China. Coming to mmWave, which uses bands n258, n260, and n261, the conversation
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