Visual inspection

The Genesis Xenon 800 is a lightweight gaming mouse that features a simple design with a weight adjustable system and a top removable panel. This mouse is equipped with the PixArt PMW 3389 optical sensor and uses Omron and Huano mechanical switches.

In terms of the RGB implementation, the mouse has two illuminated areas, the scroll wheel and the rear of the casing. The rear uses multiple LEDs to create a strip of light while the scroll wheel has a single LED on its side.

The shape of the Xenon 800 is not symmetrical at all and will make the life of left-handed users quite difficult to say the least.

The dimensions of the mouse are (L x H x W): 120 x 43 x 66 mm.


The shape of the Genesis Xenon 800 is simple, with a slope on the right side that provides a good base for your hand to sit on. However, thanks to this slope in the shape of the mouse, the Genesis Xenon 800 is not easy to use for left-handed users.

The honeycomb pattern is present on all parts and panels of the mouse. This cutout pattern does not affect the handling of the mouse or the level of comfort it uses.


The left side of this mouse features two wide buttons which have a glossy texture. By default, these buttons are configured as the forward and backward buttons but they can be customized in the software.


One of the best features with this mouse is the removable rear top panel. This panel is attached to the body of the mouse with only a few clips and can be taken out in mere seconds. Included with the mouse we have a second rear top panel which is solid, and thus with the Genesis Xenon 800, you have a choice of either a solid or a lightweight honeycomb panel.

One thing to note with the solid panel though, if you do use it, the rear Genesis RGB logo will not be visible anymore.


The weight system with the Xenon 800 is simple and has been used before with other Genesis mice. In essence, you have a flexible rubber tray that can hold twelve weights in total. The rubber tray sits in a small plastic made slot inside the mouse.


The scroll wheel of the Xenon 800 is simple in its design. It has a two-part construction, with a frosted plastic on the inside and a top rubberized portion on the outside. This way you get the best of both worlds, the frosted plastic will reflect and diffuse the RGB LEDs while the rubber will give you a soft touch.


The RGB LEDs used with the Xenon 800 is located around the rear of the casing and on the scroll wheel. These RGB LEDs have a good color rendition and smooth transition between the shades. The color of the LEDs will reflect the profile and DPI value set up and stored inside the mouse.

The rear of the mouse has the most LEDs as it not only has a strip of lights but the Genesis logo inside. Both items RGB illuminated in tandem.

All LEDs can be customized via the included software.


At the center on the top casing there is a large button. This is the DPI and profile cycle button that will do exactly that, cycle through the preinstalled profiles. It is good to know that these DPI profiles can be customized with the included software.


The underside of the Xenon 800 has the same honeycomb pattern cutout as the rest of the mouse. The preinstalled Teflon skates are white and can be easily replaced if needed.

Next to the optical sensor there is a small switch that will toggle between the polling rate between 125, 500, and 1000 Hz. Weirdly enough, this switch is not mentioned anywhere on the Genesis website or the user manual of the mouse.


The cable used on this mouse is long enough at 1.8m. It uses a shoelace style sleeving and is flexible enough to not get in your way even on a rough mouse mat. The connector used on the cable is a standard gold-plated USB 2.0.

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