diff --git a/ports/zephyr/Kconfig b/ports/zephyr/Kconfig
index beddb2b0b9..c12e4bc854 100644
--- a/ports/zephyr/Kconfig
+++ b/ports/zephyr/Kconfig
@@ -59,6 +59,30 @@ config MICROPY_USB_DEVICE_PID
 	hex "USB PID"
 	default 0x0001
 
+choice MICROPY_CONFIG_ROM_LEVEL
+	prompt  "MicroPython Features level"
+	default MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES
+
+	config MICROPY_CONFIG_ROM_LEVEL_MINIMUM
+		bool "Disable all optional features"
+
+	config MICROPY_CONFIG_ROM_LEVEL_CORE_FEATURES
+		bool "Only enable core features"
+
+	config MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES
+		bool "Enable most common features"
+
+	config MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES
+		bool "Enable convenience features"
+
+	config MICROPY_CONFIG_ROM_LEVEL_FULL_FEATURES
+		bool "Enable all common features"
+
+	config MICROPY_CONFIG_ROM_LEVEL_EVERYTHING
+		bool "Enable everything"
+
+endchoice
+
 endmenu # MicroPython Options
 
 source "Kconfig.zephyr"
diff --git a/ports/zephyr/mpconfigport.h b/ports/zephyr/mpconfigport.h
index f52b42fc2f..ceaa6df43c 100644
--- a/ports/zephyr/mpconfigport.h
+++ b/ports/zephyr/mpconfigport.h
@@ -31,9 +31,20 @@
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/spi.h>
 
-// Use the basic configuration level to get a balance between size and features.
-#ifndef MICROPY_CONFIG_ROM_LEVEL
+#if defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_MINIMUM)
+#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_MINIMUM)
+#elif defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_CORE_FEATURES)
+#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_CORE_FEATURES)
+#elif defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES)
 #define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES)
+#elif defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES)
+#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES)
+#elif defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_FULL_FEATURES)
+#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_FULL_FEATURES)
+#elif defined(CONFIG_MICROPY_CONFIG_ROM_LEVEL_EVERYTHING)
+#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_EVERYTHING)
+#else
+#error "Undefined Feature Level"
 #endif
 
 // Usually passed from Makefile