diff --git a/mobile/src/source-control/MobileCommitDetailPage.tsx b/mobile/src/source-control/MobileCommitDetailPage.tsx
index 4f2ee5d511c..152d6d4aed7 100644
--- a/mobile/src/source-control/MobileCommitDetailPage.tsx
+++ b/mobile/src/source-control/MobileCommitDetailPage.tsx
@@ -34,6 +34,8 @@ type Props = {
   commit: MobileGitHistoryItem
   bottomInset: number
   onBack: () => void
+  // Opens a file in the shared diff screen; rows stay inert when the host offers none.
+  onOpenFile?: (filePath: string) => void
 }
 
 function splitPath(path: string): { name: string; dir: string } {
@@ -57,7 +59,8 @@ export function MobileCommitDetailPage({
   worktreeId,
   commit,
   bottomInset,
-  onBack
+  onBack,
+  onOpenFile
 }: Props) {
   useMobileColorScheme()
   const t = useMobileTranslation()
@@ -271,19 +274,33 @@ export function MobileCommitDetailPage({
             {t('sourceControl.gitHistoryList.noFileChanges', 'No file changes')}
           </Text>
         ) : (
-          loadedFiles.map((file) => <CommitFileRow key={file.path} file={file} />)
+          loadedFiles.map((file) => (
+            <CommitFileRow key={file.path} file={file} onOpen={onOpenFile} />
+          ))
         )}
       </ScrollView>
     </View>
   )
 }
 
-function CommitFileRow({ file }: { file: MobileGitChangedFile }) {
+function CommitFileRow({
+  file,
+  onOpen
+}: {
+  file: MobileGitChangedFile
+  onOpen?: (filePath: string) => void
+}) {
   useMobileColorScheme()
   const status = file.status ?? 'modified'
   const { name, dir } = splitPath(file.path)
   return (
-    <View style={styles.fileRow} accessibilityLabel={file.path}>
+    <Pressable
+      style={({ pressed }) => [styles.fileRow, pressed && onOpen && styles.fileRowPressed]}
+      disabled={!onOpen}
+      onPress={() => onOpen?.(file.path)}
+      accessibilityRole={onOpen ? 'button' : undefined}
+      accessibilityLabel={file.path}
+    >
       <Text style={[styles.fileStatus, { color: statusColor(status) }]}>
         {STATUS_LABELS[status]}
       </Text>
@@ -301,7 +318,7 @@ function CommitFileRow({ file }: { file: MobileGitChangedFile }) {
         ) : null}
       </View>
       <CommitLineStat added={file.added ?? 0} removed={file.removed ?? 0} />
-    </View>
+    </Pressable>
   )
 }
 
@@ -358,6 +375,7 @@ const styles = themedStyleSheet(() => ({
     fontFamily: typography.monoFamily,
     fontWeight: '600'
   },
+  fileRowPressed: { backgroundColor: colors.bgRaised },
   fileMain: { flex: 1, minWidth: 0 },
   fileName: { color: colors.textPrimary, fontSize: typography.bodySize },
   fileNameDeleted: { textDecorationLine: 'line-through', color: colors.textMuted },
diff --git a/mobile/src/source-control/MobileCommitsScreen.test.tsx b/mobile/src/source-control/MobileCommitsScreen.test.tsx
index 8bb0a4193b3..bb4c359916f 100644
--- a/mobile/src/source-control/MobileCommitsScreen.test.tsx
+++ b/mobile/src/source-control/MobileCommitsScreen.test.tsx
@@ -297,6 +297,35 @@ describe('MobileCommitsScreen', () => {
     expect(list?.props.refreshControl.props.refreshing).toBe(false)
   })
 
+  it("opens a commit's file in the shared diff screen against that commit", async () => {
+    const openDiffForFile = vi.fn()
+    const client = createFakeRpcClient()
+    client.sendRequest = routedSend(() => Promise.resolve(historyResponse('expandable')))
+    await act(async () => {
+      renderer = create(
+        createElement(MobileCommitsScreen, {
+          client,
+          connState: 'connected',
+          worktreeId: 'wt-1',
+          hostId: 'host-1',
+          bottomInset: 0,
+          openDiffForFile
+        })
+      )
+      await settle()
+    })
+    await openFirstCommit()
+    const fileRow = renderer?.root.find(
+      (node) => String(node.type) === 'Pressable' && node.props.accessibilityLabel === 'src/app.ts'
+    )
+    await act(async () => fileRow?.props.onPress())
+    expect(openDiffForFile).toHaveBeenCalledWith({
+      kind: 'commit',
+      filePath: 'src/app.ts',
+      commitOid: 'commit-1'
+    })
+  })
+
   it('wipes commits when the worktree identity changes', async () => {
     let historyCalls = 0
     const sendRequest = routedSend(() => {
diff --git a/mobile/src/source-control/MobileCommitsScreen.tsx b/mobile/src/source-control/MobileCommitsScreen.tsx
index 100c78fe9ee..4f508f3db89 100644
--- a/mobile/src/source-control/MobileCommitsScreen.tsx
+++ b/mobile/src/source-control/MobileCommitsScreen.tsx
@@ -8,6 +8,7 @@ import type { RpcClient } from '../transport/rpc-client'
 import type { ConnectionState } from '../transport/types'
 import type { MobileGitHistoryItem } from './git-history-reply-schema'
 import { MobileCommitDetailPage } from './MobileCommitDetailPage'
+import type { MobileDiffFileTarget } from './use-mobile-source-control-openers'
 import { MobileGitHistoryList, type MobileGitHistoryListProps } from './MobileGitHistoryList'
 
 type OpenCommit = (commit: MobileGitHistoryItem) => void
@@ -17,12 +18,14 @@ type Props = Omit<MobileGitHistoryListProps, 'onOpenCommit'> & {
   embedded?: boolean
   // Set by a parent whose own commit page covers more than this list, e.g. the whole Source Control screen.
   onOpenCommit?: OpenCommit
+  openDiffForFile?: (target: MobileDiffFileTarget) => void
 }
 
 // The branch's commits; a commit opens over them unless the parent hosts the commit page itself.
 export const MobileCommitsScreen = memo(function MobileCommitsScreen({
   embedded = false,
   onOpenCommit,
+  openDiffForFile,
   ...props
 }: Props) {
   const list = (open: OpenCommit) => <MobileGitHistoryList {...props} onOpenCommit={open} />
@@ -37,6 +40,7 @@ export const MobileCommitsScreen = memo(function MobileCommitsScreen({
       worktreeId={props.worktreeId}
       bottomInset={props.bottomInset}
       padTop={false}
+      openDiffForFile={openDiffForFile}
     >
       {list}
     </MobileCommitPageHost>
@@ -58,6 +62,7 @@ export function MobileCommitPageHost({
   worktreeId,
   bottomInset,
   padTop,
+  openDiffForFile,
   children
 }: {
   client: RpcClient | null
@@ -66,6 +71,7 @@ export function MobileCommitPageHost({
   bottomInset: number
   // The page covers a screen-top header, so it pads under the status bar unless an ancestor already did.
   padTop: boolean
+  openDiffForFile?: (target: MobileDiffFileTarget) => void
   children: (openCommit: OpenCommit) => ReactNode
 }) {
   const pager = useOptionPager<'commit'>()
@@ -97,6 +103,11 @@ export function MobileCommitPageHost({
         commit={commit}
         bottomInset={bottomInset}
         onBack={close}
+        onOpenFile={
+          openDiffForFile
+            ? (filePath) => openDiffForFile({ kind: 'commit', filePath, commitOid: commit.id })
+            : undefined
+        }
       />
     ) : null
   return (
diff --git a/mobile/src/source-control/MobileSourceControlPanel.tsx b/mobile/src/source-control/MobileSourceControlPanel.tsx
index 91b66d76f70..0346e035393 100644
--- a/mobile/src/source-control/MobileSourceControlPanel.tsx
+++ b/mobile/src/source-control/MobileSourceControlPanel.tsx
@@ -317,6 +317,7 @@ export function MobileSourceControlPanel({
         worktreeId={worktreeId}
         bottomInset={insets.bottom}
         padTop={!embedded}
+        openDiffForFile={state.openDiffForFile}
       >
         {(openCommit) => (
           <View style={styles.container}>