Luna Display 5.0 allows Windows PC users to make their iPad into a second screen. A hardware/software combination from Astropad lets the two disparate computers communicate via a wireless adapter for USB-C or HDMI.

The app could already turn an iPad into a Mac display with a dongle.

A pair of adapters just launched by Hyper let MacBooks with an Apple M1 processor connect to dual HDMI monitors. Apple says the macOS notebooks can only use one external display, but users found a workaround. And Hyper built this workaround into its latest accessories.

There’s a basic HyperDrive Dual 4K HDMI adapter, plus a second version that offers additional ports.

Your iPhone is already one of the most useful things you own, but it can do even more if you hook it to a large second screen. Making the connection simply requires an adapter, and doing so opens up quite a few entertainment — and even some productivity — options.

iOS and iPhone are surprisingly powerful, and are being held back by the small display. Here’s what you get with a bigger one.

A portable monitor makes you more productive on the go. And the 15.6-inch Vissles-M is a thin and lightweight LCD screen that easily connects to a Mac or iPad Pro through its USB-C port.

I tested this affordable external display in a variety of conditions, and used it for both for work and fun. Here’s how it held up.

Travelers looking for a lightweight external monitor for their MacBook can turn to AirTab. This comes in at only 1.1 pounds and 0.19 inches thick.

And the AirTab Touch adds a 10-point touchscreen without increasing the bulk.