Mirror (by Lululemon)

The Mirror pioneered home fitness by integrating a full-length mirror with an interactive workout display, eliminating the need for extra floor space—a 30% space savings over bulkier equipment like treadmills. This design brought personal training and yoga directly into living rooms, and although discontinued, Lululemon's $500 million acquisition validated its impact. It demonstrated that immersive workouts could be stylishly delivered, influencing the connected fitness market more profoundly than any single competitor.