diff --git a/packages/ui/src/components/settings/speech-settings-card.tsx b/packages/ui/src/components/settings/speech-settings-card.tsx
index e847113d..6a196315 100644
--- a/packages/ui/src/components/settings/speech-settings-card.tsx
+++ b/packages/ui/src/components/settings/speech-settings-card.tsx
@@ -334,7 +334,7 @@ const Field: Component<{
         <div class="settings-toggle-title">{props.label}</div>
         <div class="settings-toggle-caption">{props.caption}</div>
       </div>
-      <div class="flex items-center gap-2 min-w-[18rem] max-w-[24rem] w-full">
+      <div class="flex items-center gap-2 w-full min-w-0 sm:min-w-[18rem] sm:max-w-[24rem]">
         {props.icon}
         <input
           type={props.type ?? "text"}
@@ -361,7 +361,7 @@ const SelectField: Component<{
         <div class="settings-toggle-title">{props.label}</div>
         <div class="settings-toggle-caption">{props.caption}</div>
       </div>
-      <div class="min-w-[18rem] max-w-[24rem] w-full">
+      <div class="w-full min-w-0 sm:min-w-[18rem] sm:max-w-[24rem]">
         <select value={props.value} onInput={(event) => props.onInput(event.currentTarget.value)} class="selector-input w-full">
           <For each={props.options}>{(option) => <option value={option.value}>{option.label}</option>}</For>
         </select>
diff --git a/packages/ui/src/styles/components/settings-screen.css b/packages/ui/src/styles/components/settings-screen.css
index 15ad55d9..0827c9a5 100644
--- a/packages/ui/src/styles/components/settings-screen.css
+++ b/packages/ui/src/styles/components/settings-screen.css
@@ -526,14 +526,49 @@
 @media (max-width: 640px) {
   .settings-screen-frame {
     padding: 0;
+    overflow: hidden;
   }
 
   .modal-surface.settings-screen-shell {
     width: 100%;
+    max-width: 100%;
     height: 100%;
     max-height: none;
     min-height: 100%;
     border-radius: 0;
+    overflow-x: hidden;
+  }
+
+  .modal-surface.settings-screen-shell .settings-screen-nav,
+  .modal-surface.settings-screen-shell .settings-screen-nav-list,
+  .modal-surface.settings-screen-shell .settings-screen-content,
+  .modal-surface.settings-screen-shell .settings-screen-scroll,
+  .modal-surface.settings-screen-shell .settings-section-stack,
+  .modal-surface.settings-screen-shell .settings-stack,
+  .modal-surface.settings-screen-shell .settings-card,
+  .modal-surface.settings-screen-shell .settings-card-content,
+  .modal-surface.settings-screen-shell .settings-toggle-row,
+  .modal-surface.settings-screen-shell .settings-toggle-row > * {
+    min-width: 0;
+  }
+
+  .modal-surface.settings-screen-shell .selector-trigger,
+  .modal-surface.settings-screen-shell .selector-input,
+  .modal-surface.settings-screen-shell .selector-button {
+    min-width: 0;
+    max-width: 100%;
+  }
+
+  .modal-surface.settings-screen-shell .settings-toggle-caption,
+  .modal-surface.settings-screen-shell .settings-inline-note,
+  .modal-surface.settings-screen-shell .remote-address-url,
+  .modal-surface.settings-screen-shell code {
+    overflow-wrap: anywhere;
+    word-break: break-word;
+  }
+
+  .modal-surface.settings-screen-shell .whitespace-nowrap {
+    white-space: normal;
   }
 
   .settings-screen-content-header,