The new version of the smart Wi-Fi doorbell that started it all still offers both wired and battery power options, but the batteries are now removable, and it’s got a few other upgrades including true 1080p HD video. The Ring Video Doorbell 2 improves in this regard by offering removable battery packs, which can charge directly using micro USB, and which easily slot in and out of the bottom of the doorbell itself while it remains installed at your front door.
