diff --git a/.github/workflows/end2end_test.yml b/.github/workflows/end2end_test.yml
index eee29c3544..cd4f40acb1 100644
--- a/.github/workflows/end2end_test.yml
+++ b/.github/workflows/end2end_test.yml
@@ -199,6 +199,14 @@ jobs:
             success_key: e2e-success-evaluations
             artifact_name: Playwright Report (Evaluations)
             postgres: false
+          - name: Distribution
+            index_script: index_distribution.py
+            playwright_project: distribution
+            shard: "1/1"
+            success_marker: .e2e-success-distribution
+            success_key: e2e-success-distribution
+            artifact_name: Playwright Report (Distribution)
+            postgres: false
           - name: General Postgres 1 of 2
             index_script: index_general.py
             playwright_project: general
diff --git a/lightly_studio/e2e-tests/index_distribution.py b/lightly_studio/e2e-tests/index_distribution.py
index 8a12ff3bc1..7bd950c27a 100644
--- a/lightly_studio/e2e-tests/index_distribution.py
+++ b/lightly_studio/e2e-tests/index_distribution.py
@@ -60,6 +60,10 @@
 DATASET_NAME = "distribution_example_dataset"
 RANDOM_SEED = 42
 
+COMPARISON_TAG_REVIEWED = "distribution_reviewed"
+COMPARISON_TAG_PRIORITY = "distribution_priority"
+COMPARISON_TAG_EMPTY = "distribution_empty"
+
 # Distinct, weighted class pools per type so each distribution has a clear shape.
 CLASSIFICATION_CLASSES = ["daytime", "night", "dawn", "dusk", "indoor"]
 CLASSIFICATION_WEIGHTS = [0.45, 0.25, 0.15, 0.1, 0.05]
@@ -114,6 +118,10 @@ def main() -> None:
     samples = list(dataset)
     rng = random.Random(RANDOM_SEED)
 
+    dataset.query()[:32].add_tag(COMPARISON_TAG_REVIEWED)
+    dataset.query()[16:48].add_tag(COMPARISON_TAG_PRIORITY)
+    dataset.query()[:0].add_tag(COMPARISON_TAG_EMPTY)
+
     for sample in samples:
         annotations: list[CreateAnnotation] = []
 
diff --git a/lightly_studio_view/e2e/distribution/distribution-comparison.e2e-test.ts b/lightly_studio_view/e2e/distribution/distribution-comparison.e2e-test.ts
new file mode 100644
index 0000000000..5a22d9a63e
--- /dev/null
+++ b/lightly_studio_view/e2e/distribution/distribution-comparison.e2e-test.ts
@@ -0,0 +1,62 @@
+import { expect, test } from '../utils';
+import { distributionComparison } from './fixtures';
+
+test('compares overlapping and empty sample tags without reloading or filtering the grid', async ({
+    page,
+    samplesPage
+}) => {
+    const firstId = await samplesPage.getTagIdByName(distributionComparison.firstTag);
+    const secondId = await samplesPage.getTagIdByName(distributionComparison.secondTag);
+    const emptyId = await samplesPage.getTagIdByName(distributionComparison.emptyTag);
+    expect(firstId).toBeTruthy();
+    expect(secondId).toBeTruthy();
+    expect(emptyId).toBeTruthy();
+
+    await page.getByTestId('side-panel-tabs-distribution').click();
+    await expect(page.getByTestId('dataset-distribution-panel')).toBeVisible();
+    const urlBeforeComparison = page.url();
+    let navigationCount = 0;
+    let imageListRequestCount = 0;
+    const recordNavigation = () => navigationCount++;
+    const recordImageListRequest = (request: { url: () => string }) => {
+        if (request.url().includes('/images/list')) imageListRequestCount++;
+    };
+    page.on('framenavigated', recordNavigation);
+    page.on('request', recordImageListRequest);
+
+    const waitForGroupedCounts = (tagCount: number) =>
+        page.waitForResponse((response) => {
+            if (!response.url().includes('/annotations/count-by-sample-tags')) return false;
+            const body = response.request().postDataJSON() as { sample_tag_ids?: string[] };
+            return response.status() === 200 && body.sample_tag_ids?.length === tagCount;
+        });
+    const selectTag = async (tagId: string, expectedCount: number) => {
+        const option = page.getByTestId(`dataset-distribution-tag-option-${tagId}`);
+        if (!(await option.isVisible())) {
+            await page.getByTestId('dataset-distribution-tag-select').click();
+        }
+        const responsePromise = waitForGroupedCounts(expectedCount);
+        await option.click();
+        return responsePromise;
+    };
+
+    await selectTag(firstId!, 1);
+    await selectTag(secondId!, 2);
+    const response = await selectTag(emptyId!, 3);
+    const requestBody = response.request().postDataJSON() as { sample_tag_ids: string[] };
+    expect(requestBody.sample_tag_ids).toEqual([firstId, secondId, emptyId]);
+    const groupedCounts = (await response.json()) as {
+        sample_tag_id: string;
+        counts: { count: number }[];
+    }[];
+    const emptyCounts = groupedCounts.find((item) => item.sample_tag_id === emptyId)?.counts;
+    expect(emptyCounts?.length).toBeGreaterThan(0);
+    expect(emptyCounts?.every((item) => item.count === 0)).toBe(true);
+
+    await expect(page.getByText(/3 sample tags/)).toBeVisible();
+    expect(page.url()).toBe(urlBeforeComparison);
+    expect(navigationCount).toBe(0);
+    expect(imageListRequestCount).toBe(0);
+    page.off('framenavigated', recordNavigation);
+    page.off('request', recordImageListRequest);
+});
diff --git a/lightly_studio_view/e2e/distribution/fixtures.ts b/lightly_studio_view/e2e/distribution/fixtures.ts
new file mode 100644
index 0000000000..307aeeeea4
--- /dev/null
+++ b/lightly_studio_view/e2e/distribution/fixtures.ts
@@ -0,0 +1,5 @@
+export const distributionComparison = {
+    firstTag: 'distribution_reviewed',
+    secondTag: 'distribution_priority',
+    emptyTag: 'distribution_empty'
+} as const;
diff --git a/lightly_studio_view/playwright.config.ts b/lightly_studio_view/playwright.config.ts
index fe7cf378ef..5e6b6a3337 100644
--- a/lightly_studio_view/playwright.config.ts
+++ b/lightly_studio_view/playwright.config.ts
@@ -50,6 +50,10 @@ export default defineConfig({
         {
             name: 'evaluations',
             testDir: './e2e/evaluations'
+        },
+        {
+            name: 'distribution',
+            testDir: './e2e/distribution'
         }
     ],
 
diff --git a/lightly_studio_view/src/lib/components/DatasetDistributionPanel/TagComparisonSelect.svelte b/lightly_studio_view/src/lib/components/DatasetDistributionPanel/TagComparisonSelect.svelte
index 876c51b0a0..1f7c6303b4 100644
--- a/lightly_studio_view/src/lib/components/DatasetDistributionPanel/TagComparisonSelect.svelte
+++ b/lightly_studio_view/src/lib/components/DatasetDistributionPanel/TagComparisonSelect.svelte
@@ -49,7 +49,11 @@
                 <Command.Empty>No sample tag found.</Command.Empty>
                 <Command.Group>
                     {#each items as item (item.value)}
-                        <Command.Item value={item.label} onSelect={() => toggle(item.value)}>
+                        <Command.Item
+                            value={item.label}
+                            data-testid={`dataset-distribution-tag-option-${item.value}`}
+                            onSelect={() => toggle(item.value)}
+                        >
                             <Check
                                 class={cn(!selectedIds.includes(item.value) && 'text-transparent')}
                             />