Based on the search results, here are the best Ring doorbells:

1. Ring Video Doorbell Pro 2 - This is the best overall Ring doorbell according to CNET, ZDNet, and Popular Science. It has high-quality 1536p HD+ live video and a unique Birds Eye View feature.

2. Ring Video Doorbell (2nd generation) - This is the best option for most people according to Toms Guide. It has a 1080p camera, improved night vision, and better motion-tracking capabilities.

3. Ring Video Doorbell 4 - This is the best standard Ring doorbell according to CNET. It is rated lower than the Pro 2 but is still recommended for those looking for a doorbell.

4. Ring Battery Doorbell Plus - This is an excellent value for almost any homeowner looking for a quality battery-powered Ring doorbell according to Popular Science. It provides several powerful advanced features without being very expensive.

5. Ring Doorbell Elite - This is the most expensive model Ring offers, but it also has the most features according to ZDNet. It connects to your Echo devices to act as a sort of answering machine and can stay online and maintain power if the Wi-Fi goes out unexpectedly.

When choosing a Ring doorbell, its important to consider which one is best for you. All of Rings video doorbells perform well, but not all of them will be ideal for you. You should also consider specific features such as video resolution, product design, and audio, as well as more expansive qualities, like ease of use, versatility, and smart home compatibility.