The Blink Video Doorbell offers sharp 1440p video with a head-to-toe view of your doorstep and the convenience of battery power, but many of its key features are locked behind a paywall.

The SwannBuddy 4K offers a familiar design to both the original SwannBuddy and most video doorbells, with a large doorbell button in the center of the device, ringed with light (briefly blue, turning ...