@StreamerUser, I don't think the big boys have to abide by that. I can guarantee that Youtube, Netflix, and several others are significantly bigger than 4MB.
The Roku Ultra 2024 (4850RW) doesn’t list internal storage in its specs because it primarily relies on external storage like microSD cards for added capacity. If you're worried about memory issues like with your older Ultra LT, adding a microSD card (64GB or more) should give you plenty of extra space and help avoid similar problems
The 4800 series Ultras do not have SD card ports. The 4GB of storage is more than enough on a Roku.