Samsung's DeX was the technology everyone thought could finally let you put down your laptop and use the processing prowess of your smartphone's powerful processor to do more than basic tasks on the go, connect your phone to a monitor, TV screen, or computer. However, the fact that you needed a wired connection between the two devices to activate this feature was its biggest drawback. But with the Note 20 line, Samsung had to get rid of this limitation by enabling wireless connectivity in DeX. This finally changed with OneUI 3.1 and you can connect your Samsung device wirelessly to a computer screen. Although currently only Samsung's S21 series is capable of doing this. The folks at AndroidPolice were able to connect the phone to both a computer and a TV, and unfortunately they reported some bugs as well. As of now, wireless streaming is limited to 1080p with noticeable lag and stutter when functionality was tested on TV. By contrast, no lag or lag was observed on a laptop, though performance still falls short of that of a wired connection. Also, use of the S Pen should also be avoided, as of now, as DeX doesn't seem to respond to S Pen input on the Galaxy S21 Ultra. In fact, this is disappointing for S 21 Ultra users who thought they could draw with their phone's S Pen when connected via DeX. Another limitation that has been reported with the DeX functionality is that it cannot coexist with Microsoft's Link to Windows app. Users who have used Microsoft's utility may need to turn it off to use DeX to link their Galaxy phone and computer. Get up close with the top tech news you can use, the latest reviews and buying guides. Follow TechRadar India on Twitter, Facebook and Instagram!