Ignorant take. All 5G modems suck at the moment, none of them are battery-efficient. Just like the frist few generations of the 4G modems. Apple only has to design to a spec that suits Apple devices, so it can be 'better'. 5G coverage still sucks and will keep sucking for a few years. Speeds are iffy, and depending on where you are, comparable to 4G. Alle Apple has to do is make a more battery-efficient modem and it's done. Nobody, except tech-nerds, cares about a download being 1 or 5 seconds slower.