I have this, easy to setup as it just replaces your existing peephole in your door. All tools are included. Battery powered so no odd wiring needed. I would buy a spare battery though so changing over is seconds not hours if you're waiting on your only battery to charge back up.
What is the difference between this and the ring doorbell.2
Apparently it works with Apple HomeKit too, so I wouldn’t believe it unless officially launched (not announced) by Ring.
Does Ring work with Google now?? (shock)