The UV5X3 is awesome. 100% Chirp supported. Flawless programming. No illegal harmonics reported so far, like the UV5R has had reported.

From: Trevor Holyoak <trevor@holyoak.com>
To: Dave Hartman <ac2gl@aol.com>; Discussion of CHIRP <chirp_users@intrepid.danplanet.com>
Sent: Wednesday, November 30, 2016 12:01 AM
Subject: Re: [chirp_users] HT Recommendations

I like my UV-5R, but I also just ordered the BTECH UV-5X3 tribander when it was on sale on Amazon yesterday. I like that it's compatible with all the UV-5R stuff, and it's supposed to have lots of improvements.