You can add additional Ring door/window sensors and motion sensors to scale up the system as needed; the kit also works with a FirstAlert smoke and carbon monoxide detector. But that's about it, for now. Ring plans to add additional sensors at a later date and has hinted at upcoming partnerships with major third-party platforms like Alexa and Google Assistant. But considering Amazon bought Ring back in February, this system should really already work with Alexa and the Amazon Cloud Cam (it doesn't).
The Spotlight Cam comes with 30-day free trial of Ring’s cloud storage for recorded video. At the end of the period, you have the option of upgrading to one of a pair of Ring Protect plans: Protect Basic allows you to store, review, and share video for up to 60 days for $3 per month or $30 a year per camera. Protect Plus provides the same for unlimited Ring cameras—including the Ring Video Doorbell—and adds a lifetime warranty and discounts on Ring products for $10 per month or $100 a year.
After testing indoor Nest IQ Indoor and Nest Cam Outdoor, I’ve decided to pass on Nest IQ Outdoor. Plus, it sounds like this version will require drilling, and I’ve found that Nest’s facial recognition feature doesn’t add more value than their face detection feature. I also don’t have a place for Ring Floodlight. However, I will buy Ring Spotlight. I have six devices in my office waiting to test, so I can’t promise that it’s going to happen quickly, but it will happen! 🙂
In fact, just this week I had the power go out at my home, which is also where my office is. I had deadlines to meet, so I decided to go to a coffee shop where I could work and fill up on caffeine. It wasn't until I walked into my garage that I remembered I had to manually open the garage door, disconnecting the door from the chain drive. My particular garage door opener wouldn't let me reconnect the door and the chain drive, locking it in place, so I was stuck with a garage door that anyone could lift open with ease.
When you say, “a service like Ring,” do you mean the ecosystem itself? As in, you’re looking for a doorbell and outdoor camera that work under one app? Or do you mean something different? Short answer is no, I can’t think of anything off the top of my head. Long answer: Ring Elite, as you said offers PoE as does DoorBird Video Doorbell, but I do not recommend DoorBird. Regarding security cameras, Arlo Q Plus (no doorbell, but it does work with IFTTT). EZVIZ Husky offers PoE (no doorbell camera, poor quality IMO, works with IFTTT). OCO Pro Bullet offers PoE as does their Pro Indoor camera (no doorbell, but it does work with IFTTT). In order, I like Arlo Q the best (it’s got a strong lead in this three-way race), followed by Oco, and EZVIZ. I have tested cameras from all three companies.
It doesn't work with the Amazon Cloud Cam indoor home security camera, either. Here's what a Ring spokesperson had to say about it: "Ring Alarm does not work with Amazon Cloud Cam at this time. While I can't comment on the roadmap at this time, what I can tell you is that we will make product decisions based on what will best empower Neighbors with an affordable, effective way to monitor their homes."