- 7/6/2025
Turn your phone or tablet into a second monitor in just minutes! In this video, I’ll show you how to use apps like Spacedesk and Glidex to extend or mirror your PC screen — both wirelessly and with a cable. Fully supports both Android and iOS devices. Perfect for boosting productivity, multitasking, or getting more screen space on the go!
#howtousetabletassecondmonitor #dualmonitorsetup #screenmirroring
#howtousetabletassecondmonitor #dualmonitorsetup #screenmirroring
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TechTranscript
00:00Hey everyone, welcome back to my channel.
00:03Today, I've got a super helpful guide for you.
00:06How to use your smartphone or tablet as a second monitor for your Windows PC.
00:10No need to buy another screen.
00:12Whether you're working from home, managing multiple tasks, or editing videos,
00:16having a second screen can make a huge difference.
00:20And the best part?
00:21You can do it wirelessly.
00:23This method works on both Windows PCs and Android or iOS devices.
00:27And the best part is, it's free.
00:30Let's dive right in.
00:31So why would you even want a second monitor?
00:33Think about this.
00:35When you're editing documents and want reference material open on the side,
00:38or live streaming, and need to monitor chat, a second screen is a game changer.
00:43Even simple tasks like responding to emails while watching a video become so much easier.
00:48And instead of spending money on another monitor,
00:50your old tablet or spare phone can do the job.
00:53Thanks to these apps.
00:54Alright, let's begin with Space Desk,
00:57one of the most popular and reliable apps for turning your phone or tablet into a wireless second monitor.
01:03It's completely free, works on both Android and iOS devices,
01:07and supports extended displays,
01:09meaning you can actually move Windows and apps over to your phone or tablet just like a real second screen,
01:15not just mirroring what's already on your PC.
01:17Let's start with setting it up.
01:20Open your browser and head over to Spacedesk.net.
01:28Now, let's download the Space Desk driver from their official website.
01:31This is where you select the driver for your Windows PC,
01:38the primary machine that'll host your extended display.
01:41If you're on Windows 10 or 11, this is the one you need.
01:45Viewer Available 4
01:46This lists all the devices that can act as secondary screens.
01:50Notice, it supports Android, iOS, even web browsers,
01:54so your phone, tablet, or even another laptop can connect.
01:58Alright, let's get started.
02:00Under Driver Available 4, click Windows 10 slash 11.
02:04This is the version most of you will need for modern PCs.
02:08Now we see all the download options.
02:11Don't worry, I'll help you pick the right one.
02:13First up, Windows 64-bit.
02:16This is the go-to choice if you're running Windows 10 or 11 on a standard laptop or desktop.
02:22Not sure whether your PC is 64-bit?
02:25Here's a quick way to check.
02:26Right-click on the This PC icon.
02:29Select Properties.
02:32Under Device Specifications, look for System Type.
02:36It will say 64-bit Operating System or 32-bit Operating System.
02:41If it says 64-bit Operating System x64 Base Processor,
02:46you're good to go with the 64-bit version.
02:50ARM64
02:51Only needed if you have an ARM-based PC, like a Surface Pro X.
02:55Most Intel or AMD users can ignore this.
02:5932-bit
03:00For older machines, still running 32-bit Windows.
03:04If your PC was made in the last decade, you likely don't need this.
03:08I'm downloading the 64-bit version now.
03:20Once it downloads, run the installer and follow the on-screen instructions.
03:24This is where we'll get everything set up properly.
03:32First, click Next to begin the installation.
03:35You'll see the license agreement now.
03:37Just click I Agree to continue.
03:39Here it shows where Spacedesk will install.
03:45The default location is perfect, so we'll just click Next again.
03:49Spacedesk needs to communicate through your firewall so your devices can connect.
03:54Just leave this box checked to allow Windows to automatically add the exception.
03:59That's the easiest way.
04:00If you run into connection issues later, we can always adjust firewall settings manually.
04:05Hit Next to continue.
04:07Click Install and Windows might ask for permission.
04:11Just say Yes.
04:13Watch the progress bar.
04:14This usually takes less than 30 seconds.
04:17While we wait, remember that Spacedesk is installing a virtual display driver,
04:22which is why it needs these permissions.
04:25Done.
04:25The wizard shows it completed successfully.
04:28Just click Finish to launch it.
04:30And there it is.
04:31You'll see the Spacedesk icon in your system tray.
04:33Spacedesk is now running in the background exactly how we need it.
04:38Now just click on the Spacedesk icon in the system tray.
04:41And there it is.
04:44The dashboard.
04:45The PC setup is 100% complete.
04:48No extra tweaks required.
04:50The default settings work perfectly for most users, so we'll jump straight to the mobile setup.
04:55That's where the magic happens.
04:57Next, grab your phone or tablet.
05:00Go to the Play Store if you're on Android,
05:02or the App Store if you're using an iPhone or iPad.
05:05Search for Spacedesk.
05:14And install the app developed by DetronicSoft.
05:18Open the Spacedesk app on your smartphone or tablet.
05:22Your Windows PC must have the Spacedesk driver we just installed.
05:26If you skip the PC setup, grab it from Spacedesk.net.
05:30Since we already set up the PC side, we'll just click OK and move to the fun part.
05:35Now let's find your PC.
05:37If your phone can't find your PC, make sure this discovery box is checked.
05:42It lets Spacedesk scan for your computer on the network.
05:45If it's unchecked, your devices won't connect.
05:48Here it will show your computer's name or IP address.
05:51Just tap it.
05:53And within seconds, your phone or tablet will start showing your Windows desktop.
05:57Watch this.
05:59Your devices are now on Workspace.
06:01Let's drag a window from my PC.
06:04Now I can watch tutorials while working on my main screen.
06:12Whether you're setting up a new system or fixing your current one,
06:16this tutorial has got you covered.
06:18First, we need the Windows ISO file.
06:21Before we start, let's quickly understand what a Windows ISO file is.
06:25Did you know you can hear your PC's audio through your phone?
06:45Here's how.
06:46Tap this three-line menu to reveal hidden controls.
06:49Tick audio to pipe all PC sounds to your phone.
06:52Ideal for headphones or private listening.
06:55Now your meetings, games, or music play through your phone's speakers.
07:00When you're done using your phone or tablet as a second screen,
07:03just tap Disconnect in the app, and that's it.
07:07Your main display will return to normal,
07:09and you can reconnect anytime when you need that extra screen space again.
07:13Here's something important.
07:14Your PC and your mobile device must be connected to the same Wi-Fi network.
07:20This is how Space Desk allows the devices to communicate.
07:23If you're on different networks or mobile data, the app won't find your PC.
07:28If it doesn't appear, you can also enter your PC's IP address manually.
07:33You'll find this in the Space Desk Driver Console dashboard under Communication Interfaces.
07:37If your screen starts to stutter or lag while using Wi-Fi,
07:45want a more stable connection than Wi-Fi?
07:48Let's set up USB mode.
07:50Here's how.
07:50On your Android device, go to Settings.
07:53In my case, I scroll down to System Settings.
07:58And then scroll once again to find developer options.
08:02Once you're in, scroll down and just enable USB debugging.
08:06Click OK.
08:12If you don't see developer options, just go to Settings.
08:16About phone or about device.
08:24Under Version.
08:25Tap Build number seven times, and it will appear.
08:28Use a USB cable to connect your phone to the PC.
08:38On your phone, choose File Transfer or MTP mode when prompted.
08:43Some phones need this to grant Space Desk full access through USB.
08:47And you'll see a pop-up that says Allow USB Debugging.
08:50Just tap OK to continue.
08:52Now, go to your PC and right-click the Space Desk icon in the System Tray.
08:57Open the Space Desk Driver console.
09:02Under Communication Interfaces.
09:05Untick Local Area Network.
09:12And tick USB Cable Android.
09:14Wait a few seconds.
09:18And you'll see a pop-up that says Allow USB Debugging.
09:22Just tap OK to continue.
09:24You can also tick Always Allow from this computer
09:27if you don't want to see this prompt every time you connect.
09:30Your phone is now acting as a second monitor, lag-free and smooth.
09:35And as you can see, I can grab this window up here
09:38and bring it down onto my second screen, my phone.
09:41Now that your phone is connected,
09:46let's tweak the display for the best experience.
09:49Right-click your desktop and select Display Settings.
09:54Drag the phone screen, usually labeled 2,
09:57to match its physical position relative to your PC.
10:01If your phone is on the right of your laptop or PC monitor,
10:04drag Display 2 to the right side.
10:07For phone below PC, drag Display 2 below Display 1.
10:11Tap Apply to save.
10:16This ensures your mouse moves naturally between screens.
10:19And that's how you can easily turn your phone or tablet
10:22into a second screen using Space Desk.
10:24It's fast, free, and works beautifully over Wi-Fi or USB.
10:29Now, let's take a look at Glidex,
10:47a smart alternative that works across Android, iOS, and Windows,
10:52and even lets you control your mobile device with your PC's mouse and keyboard.
10:56Glidex is a screen mirroring and extension app developed by Asus.
11:01But the good news is, you don't need an Asus device to use it.
11:04With Glidex, you can mirror your PC screen to your phone or tablet,
11:08or extend your display for more workspace.
11:11Before we begin,
11:12make sure your PC and mobile device must be on the same Wi-Fi network.
11:16And you need to install Glidex on both devices.
11:19Let's start with your computer.
11:21Open Microsoft Store.
11:22In the search bar, type Glidex
11:35and press Enter.
11:39Click on the Glidex app from the search results.
11:43Click Get or Install if you've downloaded it before.
11:47Wait a few moments for the installation to complete.
11:49Once installed, launch the app.
12:03Tap Next to continue setup.
12:06Now, choose your service region.
12:09Most international users should pick Global Service.
12:12After selecting Global Service,
12:14Glidex might check for updates automatically.
12:16If it does, just let it run.
12:19This helps make sure you're using the latest version
12:21with all the new features and performance improvements.
12:24Next, the Privacy Notice.
12:26Tap to confirm.
12:28This screen gives you two simple ways to get started.
12:31For phones or tablets,
12:33skin this QR code with your device's camera.
12:36It'll take you straight to the Google Play or App Store.
12:39Hit Next to continue.
12:41PC setup?
12:42Done.
12:43This is your Glidex dashboard.
12:48Clean and ready.
12:50Now, let's grab your phone.
12:52Let's install the mobile app.
12:54Go to the Play Store if you're on Android
12:56or the App Store if you're using an iPhone or iPad.
13:00Search Glidex.
13:04Hit Search.
13:08Tap Install.
13:08Once Glidex is installed,
13:20launch the app.
13:23First, select your region.
13:25Pick Global Service unless you're in China.
13:28Then tap I Agree to continue.
13:34Hit Allow.
13:36This lets your devices talk to each other wirelessly.
13:38Skip straight to Pairing.
13:43This is your Glidex mobile dashboard.
13:46Once you've installed Glidex on both your computer and your phone or tablet,
13:50it's time to connect them.
13:52Glidex gives you two main options,
13:54Wireless, Wi-Fi, and Wired, USB.
13:58Let's go through both.
13:59Let's start with the most common method,
14:01Wireless Connection.
14:03This works great when both your PC and mobile device are on the same Wi-Fi network.
14:07Make sure both your PC and mobile device are connected to the same Wi-Fi network.
14:13This is important.
14:14Glidex will only detect the device if they're on the same network.
14:19Let's connect your device, starting with the PC.
14:22Hit Start Now.
14:23Pick how you want to use your devices.
14:27Top 3 Recommended Modes
14:28Mirror
14:29Show your phone screen on PC, perfect for demos or gaming.
14:33Extend
14:34Get extra screen space.
14:36Drag windows to your phone like a second monitor.
14:39Shared Cam
14:40Turn your phone into a 4K webcam.
14:43Streamers love this.
14:44Other Handy Tools
14:46File Transfer
14:47Wirelessly send photos and files between devices.
14:51Unify Control
14:52Control both PC and phone with one mouse and keyboard.
14:56Remote Access
14:57Access your PC files from your phone on the go.
15:01I'll show you Extend Mode first.
15:03The ultimate productivity hack.
15:05Here's why Extend Mode is a game changer.
15:07Watch this.
15:08Select Extend.
15:09Glidex found your phone.
15:14To connect, scan the QR code with your phone's camera.
15:18Or tap the device if it appears in the list.
15:23On your phone, you'll see this pop-up.
15:26Hit Accept to approve the connection.
15:27It's like a digital handshake.
15:29Your phone is now wirelessly linked.
15:32Try dragging a window to see the magic.
15:37Now that we're connected,
15:38let's customize your extended display.
15:41The Preference menu lets you fine-tune your extended display.
15:45Drag the phone screen,
15:46usually labeled 2,
15:48to match its physical position relative to your PC.
15:51If your phone is on the right of your laptop or PC monitor,
15:55drag Display 2 to the right side.
15:58For phone below PC,
15:59drag Display 2 below Display 1.
16:03Tap Apply to save.
16:05This ensures your mouse moves naturally between screens.
16:10You can now drag Windows from your PC to your phone,
16:13use it for multitasking,
16:14or even present slides while checking notes on your main screen.
16:23To safely disconnect,
16:25click the Disconnect icon.
16:26Now let's look at the USB connection method.
16:32This is especially helpful if your Wi-Fi is slow,
16:35unstable,
16:36or if you want minimal latency.
16:38Make sure Glidex is open on both devices.
16:41Connect your Android device to your PC using a USB cable.
16:45You might see a pop-up asking for USB access.
16:48Choose File Transfer or Transfer Data.
16:50Enable USB debugging for Android, if prompted.
16:55Select Extend.
17:00To connect,
17:01scan the QR code with your phone's camera,
17:04or tap the device if it appears in the list.
17:07Wired connections usually provide faster response time,
17:10less lag,
17:11and better image quality.
17:12It's perfect for gaming,
17:14video playback,
17:15or professional presentations.
17:18And that's how you extend your phone or tablet screen to your PC using Glidex.
17:22They're both Wi-Fi and USB.
17:25Whether you're multitasking,
17:26attending meetings,
17:27or creating content,
17:29this dual-screen setup makes everything smoother,
17:32faster,
17:32and more productive.
17:34Give it a try,
17:35and take your workflow to the next level.
17:38Want to see your phone screen on your PC?
17:41With Glidex,
17:42you can.
17:43You can mirror it wirelessly over Wi-Fi,
17:45or use a USB connection for a smoother,
17:48lag-free experience.
17:50On your PC's Glidex app,
17:51go to Cross Device Operation.
17:54Under Mirror,
17:55click on Search for Devices.
17:57Glidex will now look for your phone or tablet.
17:59Just make sure both devices are on the same Wi-Fi network
18:02or connected via USB.
18:04Now select your device from the list.
18:07On your phone,
18:08tap Accept to allow the connection.
18:09This is Glidex's security handshake.
18:12Next,
18:13on your Android device,
18:14make sure to enable these two critical settings for Glidex to work properly.
18:18First,
18:19Display over other apps.
18:20This lets the app appear over other content.
18:29Second,
18:29Screen recording.
18:30This allows your phone screen to be mirrored to your PC.
18:34Without these permissions,
18:35mirroring just won't work,
18:37so don't skip them.
18:38And for Apple users,
18:40it's super simple.
18:41Just tap on Start Broadcast when prompted.
18:44See?
18:45As I use my phone here,
18:46everything moves smoothly on the PC display in real time.
18:50And that's how you mirror your phone or tablet to your PC using Glidex,
18:54whether it's via Wi-Fi or USB.
18:56And that's it.
19:12You now know how to use your phone or tablet as a second monitor using these two powerful apps.
19:18Whether you want to multitask better,
19:20extend your workspace,
19:21or simply boost your productivity,
19:23now you can do it all with ease.
19:26If one method doesn't work for you,
19:27the other likely will.
19:29So try both and see what fits your setup best.
19:32If you found this video helpful,
19:34don't forget to give it a thumbs up,
19:35subscribe to the channel for more tech tutorials,
19:38and hit the bell icon so you never miss an update.
19:40Let me know in the comments which app worked best for you,
19:44Space Desk or Glidex.
19:46And remember,
19:47even a phone can be powerful when used the right way.
19:50See you in the next video.
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