Last year Arlo filled a conspicuous hole in its smart-home camera lineup with the introduction of its Video Doorbell. The video quality and feature set were pretty compelling, made all the more so by its affordable price. And while there were a few software shortcomings early on, updates ultimately addressed nearly all of our concerns. Really, the only real sticking point was that you needed an old, wired doorbell with a transformer for power and chime. Now Arlo's finally a battery-powered alternative with the new Essential Wire-Free Video Doorbell.

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