Summary
Brownlee calls the Duo a fun first-generation device with clear trade-offs. Coverage of the review highlights his praise for the display and hinge and his concerns about the weight, the camera system (no dedicated telephoto and no ProRes or Log video), a delay with the side-button fingerprint unlock, and third-party apps that haven't been adapted yet. His advice is that most people should skip this generation.
Summary based on reporting by MacDailyNews and Dexerto. Watch the video for his full view.