diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 6e64112786..ad62cc06cc 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -2008,7 +2008,7 @@
   #if IS_U8GLIB_ST7920
     // Enable this option and reduce the value to optimize screen updates.
     // The normal delay is 10µs. Use the lowest value that still gives a reliable display.
-    //#define DOGM_SPI_DELAY_US 5
+    //#define DOGM_SPI_DELAY_US      5  // (µs) Delay after each SPI transfer
 
     //#define LIGHTWEIGHT_UI
     #if ENABLED(LIGHTWEIGHT_UI)
@@ -2261,7 +2261,7 @@
 // ADC Button Debounce
 //
 #if HAS_ADC_BUTTONS
-  #define ADC_BUTTON_DEBOUNCE_DELAY 16  // Increase if buttons bounce or repeat too fast
+  #define ADC_BUTTON_DEBOUNCE_DELAY 16  // (count) Increase if buttons bounce or repeat too fast
 #endif
 
 // @section safety
@@ -2302,7 +2302,7 @@
 
   //#define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)
-    #define DOUBLECLICK_MAX_INTERVAL 1250   // Maximum interval between clicks, in milliseconds.
+    #define DOUBLECLICK_MAX_INTERVAL 1250   // (ms) Maximum interval between clicks.
                                             // Note: Extra time may be added to mitigate controller latency.
     //#define MOVE_Z_WHEN_IDLE              // Jump to the move Z menu on double-click when printer is idle.
     #if ENABLED(MOVE_Z_WHEN_IDLE)