While you can't even buy more than two smartphones with Qualcomm's brand-new X55 5G modem in the US right now, the company has already announced the part that will replace it: the Snapdragon X60, and it comes with some seriously important improvements for US cellular operators.

I know that topics like spectrum and carrier aggregation can make anyone's eyes glaze over, but stick with me here, because this actually is kind of good stuff to know. Right now, most carriers in the US (and all of the "big four," soon to be big three) rely on a large diversity of various spectrum holdings to provide their 4G LTE coverage.

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