If you are looking for an assembled and tested unit I do have one in stock. https://www.amazon.ca/RXWX-Dual-Band-ADS-B-Receiver/dp/B0741DMK8P
I cannot actually update the listing to show the firmware version number since that is a shared listing. You can see that the US listing still shows 1.4r2
I always ship with the latest firmware version so it is likely that unit has the latest firmware or one back. 1.4r5 is only relevant to Foreflight users and updating the firmware if you require it is pretty straightforward.
As far as hardware differences go the main vendors all use a common hardware platform, My white ABS case, Dan Murray's antennas, Chris Young's low power SDR's GPYes and AHRS module. You will see this same package sold under different brand names such as the FlyQ Merlin, ifly as the RXWX, and then the units sold by Crew Dog electronics and Everlast concepts.
Where things begin to differ is that some are sold with batteries and carrying cases, suction mounts etc. I prefer to sell kits, I sell 10 kits for every preassembled unit stocked.
There are quite a few people out in BC flying with these. They are very popular in areas close to the border so BC southern Ontario and Montreal buy a lot of them.
These are all the exact same device just with different options as far as accessories go.
You can save a bunch of money if you buy the parts and assemble it yourself and get the exact same functionality.
https://www.amazon.com/RXWX-Dual-Band-ADS-B-Receiver/dp/B0741DMK8P/
https://www.amazon.com/Stratux-Receiver-Aviation-Weather-Traffic/dp/B071HMQY19/
https://www.amazon.com/gp/product/B01LZTZ06C/