So, there really is no reason in our mind not to use it at full speed. It is a very quiet unit, which is surprising given its size.
Our test in this respect mostly coincide with the claimed Asus numbers of about four, four and a half degrees less in reported internal component temperature while using the fan at full blast. Naturally, since it snaps on to the back of the phone and simply blows on the Gorilla Glass back, it is pretty limited in the thermal delta it can achieve. Its purpose is to aid in cooling the ROG Phone and our tests largely confirm it is measurably useful in this role. If you read the performance section of the review, you already have the gist of it. The AeroActive Cooler is the one gadget you get in every retail box and is frankly one of the most universally useful of the bunch. Seeing how there is a lot to cover here, let's just jump in. Naturally, some of these gadgets are going to be better and more useful than others. The Taiwanese giant clearly felt comfortable going all out with said hardware experiment since this has to be the most complete, or failing that, most impressive and ambitious accessory ecosystem we have ever seen on a smartphone. Definitely nothing wrong with some experimentation, just to see what sticks. That seems to be yet another page off the PC market realm Asus simply decided to apply to this new and emerging "gaming" mobile hardware niche. We have to admit, a lot of the appeal of the ROG Phone lies with its extensive accessory package.