Build Quality

Overall build quality is very solid. There is no rattle when shaking the mouse. When applying lateral pressure, no creaking of the shell can be observed. When lifting the mouse, a surprisingly loud high-pitched sound emitted from around the sensor area can be heard. Lastly, when slamming the mouse down, no accidental clicks occur.

Buttons

Main buttons on the iMouse X3 are very good. There is virtually no pre-travel, but a good amount of post-travel, particularly on the right main button. The click feel is snappy and satisfying nonetheless. Button stiffness is light to medium. Huano (green dot) switches are used for these.


Side buttons are excellent. They have pretty much no pre or post-travel and provide a snappy and satisfying click response, with an even pressure point across the entire button to boot. The side buttons sit on their own ledge above the thumb, which makes actuating them by just rolling one's thumb over them impossible. Unbranded square switches are used for these—the right picture actually shows the CPI buttons, but they're exactly the same anyway.

On the top of the mouse are two buttons for cycling up and down through the set CPI levels. Their click feel is excellent as well. Another unbranded square switch is used for these two. On the thumb rest is an additional button, which has a subpar click feel. Again, an unbranded square switch is used here. Finally, on the bottom of the mouse is an on/off-slider, which serves absolutely no purpose on a wired mouse.

Scroll Wheel

The scroll wheel is good. It's quiet when scrolling, but the individual steps are barely separated, resulting in a lack of tactility. The middle (scroll wheel) click requires fairly great force for actuation. The click switch is (you guessed right) yet another unbranded square switch. I do not know which encoder is used.

Coating

The iMouse X3 has a black UV coating on the top. It's very grippy and doesn't attract fingerprints, dirt or the likes too much. It's easy to clean, and there are no signs of wear left after doing so. All in all, an excellent coating. On the sides is a rubber-like material that is very grippy and pleasant to the touch. I cannot say anything about its longevity, though.

Button Sound Test

Disassembly

Getting this thing open is no easy task. First, you need to remove all mouse feet. Second, unscrew the screws—these have heads that look like Philips heads but aren't, and trying to unscrew any with a Philips screwdriver will damage them since they're also of poor quality. When opening it, some caution needs to be applied as there are two PCBs (side buttons and CPI buttons) connected to the main PCB and screwed to the top.


Since a lot of space is occupied by the weight compartment, not much is left for the main PCB. Half of the PCB is loaded with JST connector sockets since all the side buttons sit on their own PCBs. Additionally, the lighting is done with fairly large LEDs, which occupy quite a bit of space, too. The PCBs are all notably thick, which also adds unnecessary weight.

As for the soldering and general quality of the PCB, I'm unable to find any noteworthy flaws.