When can I find a comparison matrix for Ring doorbells and security camera?

When can I find a comparison matrix for Ring doorbells? I want to see the various types of doorbell listed across the top and the features listed down the side with little ticks confirming which doorbell has the feature. It's pretty basic stuff if you want to sell things, but unfortunately the Ring marketing people don't understand the nature of selling things. They just produce endless pictures of attractive people having fun playing with their doorbells all day - all so vacuous!