There are several things we look for when choosing the best monitor arm – all factors that we've considered when making our selection above. Firstly you want a monitor arm that's going to be solid and sturdy enough to support your monitor and allow you to move it without it feeling unstable (always check the max monitor weight, which we've listed for each item). This is even more the case if you use a touchscreen monitor.
A good monitor arm should also be adjustable in terms of height, swivel and tilt in order to allow you to position it in exactly the right angle for where you'll be sitting. Finally, although not essential, it's worth looking for monitor arms with cable management systems, which help keep those cables in order and avoid clutter at the back of your desk.