Turn Your Tablet Into a Second Monitor—Here’s How

by | Mar 14, 2025 | Life Hacks with Tech

Whether you’re a remote worker juggling Zoom calls and spreadsheets or a student organizing notes while watching lectures, a second screen can supercharge your productivity. But before you splurge on a new monitor, here’s a smarter idea:
Turn your tablet into a second display.

It’s surprisingly easy, affordable, and works with both Mac and Windows setups. Here’s exactly how to do it.

🔧 What You’ll Need

  • A tablet (iPad, Android, or Windows-based)

  • Your primary computer (Mac or PC)

  • A strong Wi-Fi connection or a USB cable

  • The right app or built-in feature

Let’s break it down by device.

🖥️ For Mac + iPad Users: Use Apple’s Sidecar

If you have a Mac (macOS Catalina or later) and an iPad (iPadOS 13 or later), you’re in luck. Apple’s Sidecar feature lets you turn your iPad into a seamless second display with no extra software.

✅ How to Set It Up:

  1. Make sure both devices are logged into the same Apple ID.
  2. On your Mac, click the AirPlay icon (in the menu bar).
  3. Select your iPad from the list.
  4. Boom—your iPad becomes an extension of your desktop!

You can mirror your screen or use it as an extended display. It even supports Apple Pencil input, perfect for drawing or note-taking.

🔒 Bonus: You can also use it wired via USB for more stability.

💡 For Windows + Android or iPad Users: Try These Apps

If you’re not living in Apple’s ecosystem, don’t worry—there are great third-party apps that get the job done.

1. Duet Display (iOS + Android + Windows/Mac)

One of the most popular options, Duet Display turns any tablet into a high-performance second monitor.

  • Download Duet on your tablet and desktop.

  • Connect via USB (recommended for low latency) or Wi-Fi.

  • Extend or mirror your screen instantly.

💸 Cost: ~$15 one-time purchase
⚡ Best for: Fast performance, even on older devices

2. Spacedesk (Windows + Android/iOS)

Spacedesk is a free, Windows-only solution that works well with Android tablets and iPads.

  • Install the Spacedesk Driver on your Windows PC.

  • Install the Spacedesk Viewer app on your tablet.

  • Connect over Wi-Fi and you’re set.

💸 Cost: Free
🌐 Best for: Budget-friendly setups and flexibility

3. Splashtop Wired XDisplay

This app turns your tablet into a wired second monitor with low latency.

  • Download the desktop and mobile apps.

  • Connect your tablet to your computer via USB.

  • Use it as an extended display instantly.

💸 Cost: ~$10
🔌 Best for: Smooth performance via wired connection

 

🛠️ Pro Tips for the Best Experience

  • Use a stand or case to prop up your tablet at eye level.

  • If using Wi-Fi, ensure both devices are on the same network.

  • Close unnecessary apps to minimize lag.

  • Adjust display settings to change resolution or screen orientation.

Why It’s Worth It

Using your tablet as a second screen gives you:

  • More screen real estate without buying new gear

  • Better multitasking (Docs on one side, video calls on the other)

  • Portability—great for working in cafes or on-the-go

  • A sustainable use for old tech you might’ve forgotten about

Whether you’re organizing your digital life or just trying to work smarter, this hack turns a tablet into a productivity powerhouse.

Maximize What You Already Have

You don’t need to buy another bulky monitor to level up your workspace. With just a tablet and a few minutes, you can unlock a whole new workflow—affordably, efficiently, and wirelessly.