The iPhone Duo is a dual-screen iPhone accessory from Latercase, not an official Apple product. It attaches a secondary display to the back of an iPhone via MagSafe, giving users a second screen without waiting for Apple to build one natively.
The product is reviewed by Unbox Therapy, a channel with over 20 million subscribers known for first-look hardware coverage. The unboxing format means you get raw, hands-on reaction to build quality, fit, and usability before any long-term testing or benchmark data exists.
What makes this worth reading in full is the open question: does a bolted-on second screen actually change how you use a phone, or is it a novelty that dies in a drawer after a week. The answer is in the footage, not the summary.
[WATCH ON YOUTUBE →]