Sometimes you just need more screen space. You can always buy a portable monitor, but what if you could just use the systems already in your home—whether they run Windows or macOS?
Luna Display is a product by Astropad that lets you turn an iPad into a wireless second display. The $130 offering uses a dongle and works with Windows PCs and Macs. Its “headless” mode turns the iPad into the main display for a Mac Mini or Mac Pro.
Luna Display’s 5.1 update, announced this week, adds even more possibilities. The dongle can now be used with any Apple machine—not just an iPad—to provide a second display for your Windows PC or Mac.
You’re not limited to Apple’s desktops or laptops, either; Luna Display now supports adding a 4K or 5K screen to your PC as a second display. That means you could attach the 24-inch iMac with a 4.5K (4480×2520) resolution or a 27-inch iMac with a 5K (5120×2880) resolution to your Windows or Mac PC.
There are some caveats, though. If you plan to connect a 4K or 5K Mac, the machine has to be running at least macOS Big Sur. Any 5K screen connected to your Windows PC will be limited to a 30 Hz refresh rate, which is half the refreshes per second than what’s typical (60 Hz). If you’re using a Mac with Big Sur or later, the refresh rate is increased to 45 Hz. And if you’re “only” connecting a 4K screen, your refresh rate will be 60 Hz, whether the display is connected to a Windows or Apple system.
Other additions with the Luna Display 5.1 update include support for Apple’s Magic Keyboard and trackpad with a Luna Display-connected iPad. Again, this feature works whether the iPad is connected to a Mac or PC.
Note that to use Luna Display in general, you must have a system with Windows 10 64-bit, Build 1809 or later, or macOS 10.11 El Capitan or later as your main PC. The iPad must run iOS 12.1 or later, and you need either 802.11n Wi-Fi or an Ethernet connection.
With Apple and Windows historically living in such separate camps, it’s nice to see a product bring more platform agnosticism for those who aren’t completely committed to one side.