The $399.99 Echo Show 21 is Amazon's largest smart display. With a 21-inch screen, it's almost 6 inches larger than the $299.99 Echo Show 15, but otherwise, the two are identical. It's essentially ...

But in general, Intel CPUs dominate the AIO PC market. Meanwhile, among Macs, Apple's 2021 24-inch iMac was based on the Apple M1 processor, which was a harbinger of the iconic iMac's future.

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Most 27-inch models suited for graphical work feature at least a 2,560-by-1,440-pixel native resolution, but 4K (3,840-by-2,160-pixel) models are now widely available.