diff --git a/src/components/App/DeviceCompatibilityNotification/__tests__/index.tsx b/src/components/App/DeviceCompatibilityNotification/__tests__/index.tsx
new file mode 100644
index 000000000..c2aa23e2e
--- /dev/null
+++ b/src/components/App/DeviceCompatibilityNotification/__tests__/index.tsx
@@ -0,0 +1,45 @@
+import '@testing-library/jest-dom'
+import { fireEvent, render, screen } from '@testing-library/react'
+import React from 'react'
+import { DeviceCompatibilityNotice } from '..'
+import * as MobileHook from '../../../../hooks/useIsMobile'
+
+jest.mock('~/hooks/useIsMobile')
+
+const useIsMobileHook = jest.spyOn(MobileHook, 'useIsMobile')
+
+describe('DeviceCompatibilityNotice Component', () => {
+  beforeEach(() => {
+    jest.clearAllMocks()
+    useIsMobileHook.mockReturnValue(true)
+  })
+
+  it('should display  message and button correctly', () => {
+    render(<DeviceCompatibilityNotice />)
+
+    expect(screen.getByText('Second Brain is currently')).toBeInTheDocument()
+    expect(screen.getByText('optimized for Desktop.')).toBeInTheDocument()
+    expect(screen.getByText('Mobile support coming soon.')).toBeInTheDocument()
+    expect(screen.getByRole('button', { name: 'Got It' })).toBeInTheDocument()
+  })
+
+  it('hides the notice when "Got It" button is clicked', () => {
+    jest.mock('../', () => jest.fn(() => <div data-testid="device-compatibility-notice" />))
+
+    render(<DeviceCompatibilityNotice />)
+
+    fireEvent.click(screen.getByRole('button', { name: 'Got It' }))
+
+    expect(screen.queryByTestId('device-compatibility-notice')).not.toBeInTheDocument()
+  })
+
+  it('should not render notice when useIsMobile hook returns false.', () => {
+    useIsMobileHook.mockReturnValue(false)
+
+    jest.mock('../', () => jest.fn(() => <div data-testid="device-compatibility-notice" />))
+
+    render(<DeviceCompatibilityNotice />)
+
+    expect(screen.queryByTestId('device-compatibility-notice')).not.toBeInTheDocument()
+  })
+})