diff --git a/src/welcome-day-1/what-is-rust.md b/src/welcome-day-1/what-is-rust.md
index 36a87bc0..3e821720 100644
--- a/src/welcome-day-1/what-is-rust.md
+++ b/src/welcome-day-1/what-is-rust.md
@@ -22,7 +22,7 @@ Rust fits in the same area as C++:
 
 * High flexibility.
 * High level of control.
-* Can be scaled down to very constrained devices like mobile phones.
+* Can be scaled down to very constrained devices such as microcontrollers.
 * Has no runtime or garbage collection.
 * Focuses on reliability and safety without sacrificing performance.