In the search for the best door peephole cameras, you'll find a huge divide in both price and features between the simplest door camera and the most expensive one. For example, some peephole cameras offer the ability to control your camera via a smartphone app, so you can monitor who is outside your door from literally anywhere with WiFi. Other, slightly less expensive models will offer the basics: a two-way recording device that allows you to communicate, a basic video feed screen, and the ability to save videos and photos from your camera to a backup device.
Understandably the more money you invest, the more features you'll get. But, higher price door cameras will also offer some simple upgrades that help to justify their price tags, upgrades like bigger, clearer LCD screens, rechargeable battery power (as opposed to batteries you'll have to replace consistently), and more advanced night vision technology.
As you shop, keep your budget in mind. The entry point for a solid door peephole camera is around $50, but if you're willing to put in an extra $100 or $200, you'll get top-tier quality cameras that are decked out with all the bells and whistles.
But, take a deep breath. I've sifted through the best door peephole cameras out there and can say that, for the money, these three are the best ones you can buy.