Micron has unleashed new flash storage with the updated UFS 4.0 standard on the mobile device memory market. The OEM asserts that it can double the speeds associated with its predecessor, while using up to 25% less power. Its "advanced" 3D NAND is backed to help make next-gen premium up-to-1TB smartphones.https://www.notebookcheck.net/Micron-UFS-4-0-storage-for-next-gen-flagship-smartphones-makes-debut.728064.0.html
I just do not see the purpose for these speeds for today's extremely handcuffed dumbphones.
TRUE 4K (55mb/s+ bitrate) with TRUE Dolby Vision (p7) support? Nope!
TRUE 4K gaming with ray-tracing enabled? Nope!
Continuous 4K/60 video recording? NoOOoo!
Massive of 100s of GiB transfers often from a phone? Heck NO!
Creative work? Well, not to the extent that these speeds would matter.
Useless storage speed for current and near future phones for just another stupid reason to jack-up prices for something that's not even practical for today or tomorrow.
When phones become really smart and the majority of users has finally throw away very intrusive/spying, no TRUE file system, etc. Google/Android, we can record in 4K longer than 10-minutes or so before the phone burn-up, and when phones can play CP2077, etc. (with ease w/path-tracing enabled at least at 1080p) then the TRUE smartphones could use these speeds(+) here.
Until then (years out it seems, intentionally) this is just gibberish marketing.