The latest boards
The Raspberry Pi may be the world's best-selling single-board computer but it is far from the only credit card-sized device available.
While the Pi strikes a fine balance between performance, price and usability, other tiny boards deliver higher specs at a premium price.
In 2018 new boards have brought high-end features to single-board computers: six-core processors, support for 4K displays, fast SSD storage via SATA and M.2 interfaces, and even specialist chips that accelerate machine learning.
However, it's worth pointing out that few boards are as accessible or offer the same breadth of stable software as the Pi.
Here are notable boards released in 2018 or due out before the year's end.
This gallery is also available as a single-page article.
Image: Raspberry Pi Foundation