My main use for a NanoVNA is antenna testing probably no higher than 100 Mhz.  I tried a NanoVNA-F_V2 and liked it but it was very slow doing sweeps.  It is nice to see the reaction while adjusting antenna tuner, etc.  So, I returned it and now have a NanoVNA-V2Plus4.  It is way faster and less noisy.  I have been reading a few reviews on the .  Is it noticeably faster doing sweeps than the V2P4?  Does the fact that it has USB-C give it any advantage while using it with the PC apps?  I certainly do not need the 6Ghz range.  Any advice?  I want to stay under the $300 range.

Thanks in advance for any opinions!