The original Ring has a battery option. I don’t know how I would feel about that because you do have to remove the doorbell to charge it. Ring claims it will last 6-12 months on a charge. If that’s true, that wouldn’t be so bad; however, I would expect it to last like 3-6 months. In my experience, when a company gives a top end battery life range, that’s how long it will last if you never use the device. All that said, I don’t know how hard it would be to move a wired doorbell to the front of your door.
One major issue that I have is that I don't believe there is a duress code for this system. A duress code will disarm the system but also secretly send a notification that there is a problem to the monitoring company, who will send the police. The Ring system has a way of doing this that would make it obvious to an intruder that you're letting the police know there is a problem. The panel has two buttons with red dots on them. By pressing both buttons at the same time, the system will notify the Ring monitoring center that you need assistance. The problem is that the intruder will definitely see you do this instead of entering your code to disarm the panel. I can see where this may upset the intruder. I feel like Ring needs to step up and add a duress code feature so that you can be discreet about needing help.
I agree! This was a great comparison article for me and timely. A neighbor of ours just recently got robbed and led us to upgrade our basic home security features. I am curious if this article will be updated once Abode Iota is launched. I like the al a carte of monitoring with Abode and may end up getting nest outdoor camera with Abode. Thank you again!

UPDATE 16FEB2018: After two weeks, I must downgrade my review... it's become obvious that the Ring Floodlight Cam only detects motion during the day. At night, I can walk through the center of my defined motion zone, but the cam won't record until I'm within 10 feet of it. The defined zone is my driveway which is about 40 feet long and we have 3 cars. As long as the ne'er-do-wells only break into the car parked closest to the Ring cam, they will be recorded. A quick Google search for "ring cam won't detect motion at night" will yield many stories of the Ring product line failing to work in darkness. Apparently, the problem has been documented since September 2017 and Ring has failed to fix it. I must say that I'm beyond disappointed. At least I discovered this in enough time to send the cam back to Amazon for a refund.