GPS advice (Flight1 or Reality XP) to buy?

[Gianmarco]

Hi,
I wanted to ask for advice on which GPS to buy.
Which one is recommended between the GTN430 and GTN750? Can both AIRACs be uploaded from Navigraph on both?
Are Flight1 products compatible with P3D4? From their product pages they would seem not ...
In case you also have other alternatives to recommend?
Among the GPS products of Flight1 and Reality XP, which is the best and compatible with P3D4?
Thank you.

[Fastback]

Well I use the flight1 GTN750 in P3Dv4 and it is excellent although it can not be updated with Navdata apart from official Garmin Navdata which costs $$$$. It comes with data from 2016 I think and may be updated from time to time via their trainer program but who knows how often that will be?

I would love updated data but 95% of the time the old data gets me through most SIDs and STARs and you can actually add additional waypoints via the gps in the sim if absolutely necessary which I have done a couple of times. Not perfect by any measure but its still much better than the default gps.