This video shows you that a Skybell with a shared device ID will show you videos of both your house and the house(s) of whomever share the same device ID.Update: I bought the Ring and at the bottom of this review is my comparison of both. For me, the Ring Wi-Fi Enabled Video Doorbell is the better doorbell. That said, if Skybell had been better with their customer service I would not have bothered to switch.============This might have been a great product if I was interested in spying on random strangers' front porches.I highly recommend NOT buying this product used. We did, and we discovered that our device was unusable because it was already registered to someone else.Three days later, customer support de-registered the previous user (after first requiring proof of ownership and proof of payment). Yay, right?Once we set it up, we noticed something peculiar. The video stream was switching between our door and someone else's. Over the course of 6 emails and 2 calls, I learned:1. If you were lucky enough to receive a device that shares a device ID with another device (manufacturing issue), you guys end up sharing a video stream2. This is not uncommon3. Fixing this is your problem because customer service won't do anything about it other than have you pay for shipping it back to them at your cost and waiting for a replacement(Last email : "Thank you for your patience. As requested, I asked our supervisor if we could provide you with an RMA to send back your defective SkyBell. However, per our warranty replacement guidelines, you would be responsible for the shipping costs to send back the unit. I apologize for the inconvenience.") When we asked if there was any other recourse, the response from the rep was "Try social media?" So we Tweeted at Skybell, emailed the contact email posted here in some of the comments, tagged them on Facebook, posted on Reddit. Nothing. No response whatsoever.Overall thoughts supposing the product DID work?======Pros======+ Doorbell looks nice enough+ Relatively easy to install+ App works on both iOS and Android=======Cons=======- SkyBell logo on the button- Potential privacy issue with device ID sharing- Wifi strength is weak - My router is in the other corner of the house and I had to get a bridge to boost the wifi strength enough for the SkyBell to work- Video takes a while to turn on, even on same network with full strength wifi.- Terrible customer service - SkyBell support is outsourced and the support team has no direct way to contact the SkyBell team.- Multiple user accounts not possible - I assume most people have more than one person who wants to use this doorbell. SkyBell doesn't support multiple user accounts so the only way this can happen is if you share the email address and password of your account to other household members- For some reason SkyBell doesn't support 5GHz so you have to switch your router to support 2.4GHz and switch to that network on your phone for set-up. In our case, we had to reprogram the router before things will work.One note: when you first connect your SkyBell, you need to wait a little for the battery to charge. I thought at first the device wasn't syncing but it just took some time to charge.-----------Having had a chance to install both Skybell and Ring on my door, here are my impressions:Installation:Skybell comes with the bell, a mounting plate, and some instructions. Screws were standard and installation was relatively straightforward. Getting the doorbell to connect to our network was a PAIN. It wasn't able to connect via a 5G network plus it didn't have strong enough signal strength so we had to get a second router for and set up a whole separate network for Skybell.Ring's package impressed the heck out of me. You get a little tool pouch with all the tools you need to set up the Ring, including a screw driver, drill bit, self level and more. If you are screwing into stucco (as I was), I don't recommend you use the included drill bit. The hole it drilled was a little large and I had to silicon caulk the hole afterwards to give the screws enough grip. Ring connected to our network pretty seamlessly and didn't need to have a separate network nor require the 2nd router.Size:Ring is MUCH larger than Skybell. I wish it was thinner but I understand there's a lot to cram in.Skybell: 2.15cm / 0.8in thick, 7.1cm / 2.8in diameterRing : 0.87in thick, 4.98 tall by x 2.43 inches wideBattery / Power to the deviceSkybell is fairly low powered, so there is no battery attached to it. It runs off the power from your doorbell so it cannot be mounted anywhere you do not have direct power.Ring is battery powered. I charged it to about 60% via a USB cord first before I plugged it into the wall. You can get some trickle power from the doorbell, but depending on the weather and use, you may find you drain the battery faster than it charges. An hour after the bell has been plugged and with one test video call in I'm at 57% battery life. This might get annoying, but it does mean Ring can be mounted anywhere, not just where you have direct power.Mobile AppSkybell only lets you have one user at a time. If you want more than one person to have access to the video stream you have to share accounts. I do like that you can see your doorbell on demand. I like being able to check in on my door. I understand that Ring is working on this but it's not yet available.Ring lets you have multiple users. The first installed user just has to send email invites to the other users. Ring shows you recent activity, but you need to pay a $3 a month subscription to see your videos on cloud. I wish that wasn't the case but $3 isn't that bad.Video on demandSkybell : yesRing : not yet, coming soonMotion detection:Skybell : YesRing: YesVideo qualityI couldn't find the specs on the Skybell. Ring seemed to have slightly higher video quality in the day and slightly higher audio quality but this may be subjective.Lag / Delay between door bell ring and phone notificationSeems to be about the same on both. There is a bit of a delay, but for me that's acceptable compared to the alternative of just missing the door altogether.Based on all of this, I prefer the Ring.