Out of the box, the Logitech G9x feels significantly heavier than most wired mice that we have ever cpme across. It comes with two interchangeable grip – Wide load grip and Precision grip.
The above is the wide load grip which has a round shape and a wider thumb rest with a soft rubbery satin finish for a comfortable palm grip.
The Precision grip, on the other hand, has a sharper and more compact shape with a rough plastic texture which is great for claw grip users.
Besides the interchangeable grips, the Logitech G9x also comes with a weight-tuning system which you can fine-tune to your liking. Logitech has provide four 4g and four 7g weights encased in a simple metal box.
You can adjust the weight placement to customize the feel. Simply remove the interchangeable grip and the spring-loaded weight tray at the back of the mouse and insert the weights. Push the weights into the tray, assemble the mouse back together and it's done. The G9x weighs over 150 grams without any weight and to help it glide more easily, Logitech has put in extra large polytetrafluoroethylene (PTFE) feet.
The Logitech G9x uses a unique "Micro-gear" technology which offers dual modes of scrolling – Ratchet mode which feels very light and gives off a solid mechanical feedback with an audible click with each notch; and Hyper-fast mode that delivers a smooth and effortless scrolling. To switch between modes, simply push the Microgear button located at the base of the mouse. We feel that the Microgear button should be placed on the top of the mouse for an easier reach instead of having to flip the mouse every time to change between modes.
The Logitech G9x has a tilting scroll-wheel which is rarely seen on gaming mice. The tilting scroll-wheel allows users to scroll horizontally which is very helpful for applications such as web-surfing. For gaming, users can simply program the tilt function to reload weapons, voice chat or even intricate macros. One complaint we had with the scroll-wheel is the difficulty in pressing the middle-mouse button.
Near the left of the mouse are a pair of horizontally place buttons labelled "+" and "-" to increase the Dots Per Inch (DPI) level or decrease it respectively. The buttons are narrow and flushed against the curvature of the mouse which may prove difficult for users with large fingers. A DPI level LED indicator is located just underneath the DPI button which is useful for users to keep track of the DPI level.
On the left side, Logitech G9x has two buttons which are by default to go back and forward through web pages and documents. The side buttons are well-positioned for users to reach. The mouse also comes with a well-braided cable which shows the high quality standards that Logitech have put into their gaming series.