MFJ also has about 8 different antenna analyzers available, some analog and some digital.
Comet has very nice ones, too, for around $500.

NanoVNA is by far the cheapest, but comes with no instructions or documentation.
The NanoVNA-F has a different type of screen than the NanoVNA-H models, and it's screen is more visible when outdoors - but still not too good in the sun. I _really_ need a sunshade for it in Florida.

To get a 'feel' for using a nano, watch some youtube videos - there are many.
That might help for other analyzers too.
--
Doug, K8RFT