There are a few (quite a bit) older versions that have a very large font for "some" of the data. Those versions have "AA" in the file name, for "Antenna Analyzer".
An example (from my hard drive) - nanoVNA_900_AA_20190507.dfu
Sorry, but I don't have a record of the source for downloading that file.
In this group's "FILES" section is a "Firmware" subsection with this list of "all known files"
All (known) publicly available NanoVNA DFU files from May 5, 2019 through to Sept 29, 2019
this list includes " DL9CAT 5 files Report File
edy555 + Large font and big info screen "
The AA version shows SWR and Frequency is a very large (white) font, at the center of the Nano's screen. At least the version I tried a couple of years ago did.
--
Doug, K8RFT
