Yeah that's a good 1. The pyronix seems to come on top. Apparently bought out by hikvision a while back.
Check this one, 2 way communication https://www.alertelectrical.com/texecom-ricochet-premier-elite-64w-wireless-alarm-kit-with-wired-keypad-kit-0086.html?gclid=EAIaIQobChMI-bypu7bL4wIVhbTtCh1RQQmtEAQYASABEgKzZfD_BwE
Having looked at this previously, my feeling was the newer sync version adds Alexa (and possibly other) support, whilst the smart version uses the Yale app only. I might be wrong. One obvious difference is that all the extra parts for the newer sync version are much more expensive (not sure whether the older parts are compatible with sync version).
Voted hot, decent price for a decent brand with a reasonable number of devices included. Shame it does not come with a camera too, but maybe it's too much to ask for.
Not sure how the smart and sync systems compare but I do know the sync from Amazon is a great product. Voted hot.