How to use mobile as a second monitor?
To use your tablet or Android as an extended display, you just have to configure secondary display options in Windows. To do that go to the Control Panel and then Display Settings. Select Extend These Displays and click OK. You should now be able to use your Android as an extended display.
Spacedesk works well if you don’t want your phone to be bounded by a USB. But that’s the only complaint I have. Since it works wirelessly, there is a noticeable amount of lag. It’s good that you can switch to hotspot and USB.
Supported Medium: LAN, Wi-Fi, USB
Download Spacedesk (free)
2. Splashtop Wired XDisplay
Splashtop Wired XDisplay, as the name suggests, will require you to have a USB handy. Unlike Spacedesk, WiredXDisplay allows you to connect your phone only via USB. On the plus side, since you are connected by a wired medium, you get better resolution and frame rate. It supports Full HD resolution at 60 frames per second.
Wired XDisplay can be installed on both Mac and PC, giving it an edge over Air Display. Mobile apps are available for both Android and iOS. Splashtop uses USB over WiFi for one simple reason – it offers a more responsive and real-time experience. There is no lag whatsoever and you get a battery saver mode which drops the frame rate and resolution to save up on processing.
Supported Medium: USB
Download Splashtop Wired XDisplay (Free)
3. Google Remote Desktop
Like Remote Desktop for Windows, it also allows you to control your PC via your Android device. You can run commands on your PC from your Android phone. Basically, everything that you can do on your desktop can be done from the Android phone as well. Remote Desktop, like all Google products, is easy to use and simple to set up. You just need to have a working Gmail account. The ability to control your PC remotely is where it shines the most though.
Google Remote Desktop works seamlessly but you cannot use separate apps on both the screen. It doesn’t let you use your phone as an extended display.
Supported Medium: Internet
Download Google Remote Desktop (free)
4. iDisplay
iDisplay is another display mirroring app on this list. iDisplay started with the macOS and iOS but quickly expanded to other Operating systems. You have apps for Windows and Android which makes it a good cross-platform solution. It supports 60 fps and plus offers multi-touch on the device you are using it on.
iDisplay has everything that the other app offers, with one caveat; USB support is not available for Android yet. It does support WiFi though and comes with multi-touch support.
Supported Medium: LAN, Wi-Fi, USB (except Android)
Download iDisplay ($18)
