diff --git a/src/components/WeeklyView.tsx b/src/components/WeeklyView.tsx
index 9da2956..8709580 100644
--- a/src/components/WeeklyView.tsx
+++ b/src/components/WeeklyView.tsx
@@ -1408,9 +1408,10 @@ export default function WeeklyView() {
         return () => el.removeEventListener("wheel", handler);
     }, [showSomeday, somedayExpanded]);
     const saveSetting = async (key: string, value: any) => {
-        // Save per-device settings to cookie as well
+        // Per-device settings: save to cookie ONLY (not DB) so each device keeps its own value
         if (DEVICE_SETTINGS_KEYS.includes(key)) {
             setCookie(`setting_${key}`, String(value));
+            return; // Don't write to DB — that would overwrite other devices
         }
         try {
             await fetch("/api/user/profile", {