Use iPad as Second Screen for Mac: The Complete Sidecar Guide
Introduction to Apple Sidecar
With Apple Sidecar, you can use your iPad as a second display for your Mac - wirelessly or via cable. This feature significantly expands your workspace and is perfect for multitasking, presentations, or creative work. In this guide, we'll show you how to set up and optimally use Sidecar.

Requirements for Sidecar
Compatible Mac Models
Compatible iPad Models
- All iPad Pro models
- iPad (6th generation or newer)
- iPad mini (5th generation or newer)
- iPad Air (3rd generation or newer)
Software Requirements
- macOS Catalina 10.15 or newer
- iPadOS 13 or newer
- Same Apple ID on both devices
- Two-factor authentication enabled
Setting Up Sidecar
Method 1: Via Control Center
- Click the Control Center icon in the menu bar
- Click on Screen Mirroring
- Select your iPad from the list
- Choose between "Mirror" or "Use as Separate Display"
Method 2: Via System Settings
- Open System Settings on your Mac
- Click on Displays
- Click the + button next to "Add Display"
- Select your iPad
Method 3: Via AirPlay Icon
- Look for the AirPlay icon in the menu bar
- Click on it and select your iPad
- Choose your preferred display mode
Sidecar Features and Controls
Touch Bar
Even if your Mac doesn't have a physical Touch Bar, Sidecar displays a virtual Touch Bar at the bottom of your iPad screen. This gives you quick access to system controls and app-specific functions.
Sidebar
The sidebar on the left edge of the iPad provides quick access to:
- Command key (⌘)
- Option key (⌥)
- Control key (⌃)
- Shift key (⇧)
- Undo function
- Keyboard display
Apple Pencil Support
You can use the Apple Pencil on your iPad to:
- Draw and sketch in creative apps
- Sign documents
- Make precise selections
- Use as a graphics tablet
Tips for Optimal Use
Performance Optimization
- Use cable connection: For best performance and to charge your iPad simultaneously
- Reduce distance: Keep devices within 10 meters for wireless connection
- Disable unnecessary features: Turn off Handoff if not needed
Display Arrangement
- Go to System Settings → Displays
- Drag the displays to arrange them according to your physical setup
- Adjust resolution and scaling for optimal readability
Keyboard Shortcuts
- Globe key + P: Show/hide sidebar
- Globe key + E: Show/hide Touch Bar
- Globe key + D: Disconnect Sidecar
Troubleshooting Common Issues
iPad Not Showing Up
- Ensure both devices are signed in with the same Apple ID
- Check that Bluetooth and Wi-Fi are enabled on both devices
- Restart both devices
- Update to the latest OS versions
Connection Drops
- Move devices closer together
- Use a USB cable for stable connection
- Check for Wi-Fi interference
- Disable VPN if active
Performance Issues
- Close unnecessary apps on both devices
- Reduce display resolution in settings
- Use wired connection instead of wireless
- Check available storage space
Alternatives to Sidecar
If your devices don't support Sidecar, consider these alternatives:
Third-Party Apps
- Duet Display: Works with older devices
- Luna Display: Hardware solution for better performance
- Air Display: Wireless display extension
Conclusion
Apple Sidecar is a powerful feature that transforms your iPad into a versatile second display for your Mac. Whether you're working on complex projects, giving presentations, or simply need more screen space, Sidecar offers a seamless solution. With the right setup and our tips, you can significantly boost your productivity.
Need help with your Mac or iPad? Our Mac repair service is here to assist you with all technical issues.