From the top of my head, a few differences: * Fuchsia is C (for the actual microkernel) and C++ (for userspace) / Redox is Rust. * Fuchsia's main current targe

From the top of my head, a few differences: * Fuchsia is C (for the actual microkernel) and C++ (for userspace) / Redox is Rust. * Fuchsia's main current target is smartphones & laptops / Redox' main current target is Rust. * Fuchsia is very much funded / Redox is pretty grassroot. * Fuchsia supports any language for app development but favors Dart / Redox supports any language for app developent but favors Rust. Keep in mind that both projects are pretty young and that my points above involve some dose of mind-reading, so caveat lector.