Conclusion
The Kyocera Echo presents an intriguing slice of smartphone history, showcasing innovation through its dual-screen design. However, the novelty of its design comes with compromises in terms of bulkiness and weight, which, coupled with modest hardware specifications, may have limited its appeal to more mainstream consumers. Priced around 350 EUR at its release, the Echo targeted a niche segment of users fascinated by its unique interactive potential. Although the device is now discontinued, it remains a testament to the adventurous spirit of early smartphone design exploration, paving the way for future multi-screen devices.