Oh thank heavens, computing hardware that the AI companies will not buy all of the supply of.

It depends on the number of channels. The Xring O3 appears to have 4×24-bit channels, so 113.8 GB/s. The iPhone 17 Pro's memory bandwidth is ~76.8 GB/s. Seems fine?

Not every computing platform is expected to do fast inference.

Maybe,but memory bandwidth is much better than on the DGX Spark at least.