All the components in the Ring Alarm system use Z-Wave Plus radios and support Z-Wave’s S2 security framework, but Harris told me there’s also a ZigBee radio onboard as well as some other surprises that aren’t discussed in the user manual. “You’ve got Wi-Fi, you’ve got LTE, you’ve got Z-Wave, you’ve got ZigBee….” Harris said. “I’m sure people will open it up and see there’s another radio in there that’s not turned on yet. There’s an awful lot going on in there.”
The Ring Video Doorbell Pro improves on the Ring Video Doorbell 2 and is well worth considering if your porch faces an area that’s likely to have lots of traffic, people walking by, or trees swaying in the wind. The extra $50 could make you a much happier owner, even if you need to bring power to that location. But if the area around your front door is calm and quiet, save the cash and go with the excellent Video Doorbell 2 instead.
The backing plate is designed to mount on wood, brick, concrete, stucco, and aluminum siding, and the kit includes installation parts, like screws and a drill bit, to provide everything you’ll need. Unfortunately, using my cordless DeWalt drill, I couldn’t penetrate my home’s concrete, so I opted for heavy-duty double-sided tape. It works marvelously, and there’s a failsafe even if someone steals the doorbell: Ring will replace stolen doorbells free of charge, as long as you provide a police report.
By removing the battery, Ring has been able to make the Ring Video Doorbell Pro a bit slimmer and smaller than its first- and second-generation models. The Pro measures 4.5 inches x 1.85 inches x 0.8 inches (11.4 centimeters x 4.7 centimeters x 2.0 centimeters). That’s 6.7 cubic inches (108 cubic centimeters) versus 13.6 cubic inches (223 cubic centimeters) for the Ring Video Doorbell 2—an impressive reduction in volume of more than half.
Once you have your Ring Doorbell installed you want to make sure you have a strong reliable wifi signal getting too the doorbell. If you don't have a strong signal or if it's slow you will have choppy video on the Ring Doorbell or receive notifications from your doorbell with a delay.  You won't be seeing the real time footage of what is happening at the front door if you have poor wifi signal strength. 

Update 1/24/16 - I have found a fantastic use for the Ring Doorbell and Chime. My mother-in-law, now in her 90s, lives by herself. She has become hard-of-hearing and often does not hear the doorbell. By installing the Ring on her door, she now is bothered much less (solicitors tend to recognize it and don't seem to like it) and when someone rings the bell, the Chime, placed by her favorite chair, gives her a better chance of hearing someone at the door.
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