Nothing's plan starts with two apps: Essential Apps and Playground. The Nothing Phone (3) supports up to six of these Essential apps, but older Nothing devices are limited to two. (Remember the Essential Phone from 2017? Arlo’s Essential 3 lineup includes indoor and outdoor pan/tilt cameras (a first for the company), alongside a new generation of regular outdoor and indoor cameras. The 3rd-gen Essential Outdoor Battery ($70), Essential XL Outdoor Battery ($80), Essential Security Camera Plug-in ($50), and Essential Indoor Camera Plug-in ($40) all offer 2K footage, and again, there are slightly cheaper HD versions of each.