Sensor

The SteelSeries Rival 100 was pretty much an upgraded version of the Kana series with a bunch of improvements. However, the Kana v2 actually had a way better sensor than the Rival 100, so one of the main aspects became a setback in the newer model. The Rival 110 has finally brought a fix to this problem by featuring the SteelSeries TrueMove1 sensor, which is pretty much a tuned-up, better PMW3325. It has less jitter and higher perfect control speeds, so there are generally less malfunctions. As a matter of fact, I could not find any real issues at all on the reasonable CPI steps. The position of the sensor itself is a bit weird; it's not really centered, its position way lower. If you are used to mice where the sensor is placed higher, you might need to adjust your sensitivity settings to hit the same flickshots as before.

The resolution can be set from 100–72,000 CPI in increments of 100 CPI, and there can be two active CPI settings you can cycle through with the bound button (the button behind the scroll wheel has this function by default). The available polling rates are 125, 250, 500, and 1000 Hz. The lift-off distance is not variable, and it is unfortunately quite high, but this is due to the limitations of the sensor itself. This can be fixed with some thicker mouse feet or by using the tape trick. You can also set different acceleration and angle snapping levels, but I would highly advise you to leave these disabled.

Paint Test

The paint test can show if a mouse suffers from any unwanted angle snapping, jittering, or other malfunctions and problems. The modified A3050 sensor in the Rival 100 had heavy jittering above 1000 CPI, but the TrueMove1 doesn't seem to have any until around 1600 CPI. Above that value, it gets ugly quite quickly, so I would advise you to stay on or below 1600 CPI. There is no unwanted angle snapping or sensor lens rattling either.

CPI Divergence

The measured values are a bit higher than the nominal ones, but the deviations are rather low. Please note that this measurement is not 100% correct, but it resembles reality rather well.

Perfect Control Speed

The TrueMove1 has a perfect control speed that I could not reach, but according to the specifications, it should sit at around 6.1 m/s. There is absolutely no way anyone would hit this value in-game, on the desktop, or anywhere else accidentally. The Rival 100 had a way lower perfect control speed, which made unsuitable for very low-sensitivity FPS gaming—the Rival 110 features an upgrade here as well.

Speed Related Accuracy Variance

This test shows the sensor's accuracy at different speeds. You can see me doing a fast swipe to the right before I slowly slide the mouse back to its original position.
Any displacement is pretty much entirely caused by human error in this test.

Polling Rate

All of the set polling rates are perfectly fine; there are no strange hiccups anywhere.

Input Lag

I am really not sure if there is any actual input lag because the +1 ms I have measured above 5000 CPI is quite negligible and can be just a measurement error. However I would as always recommend playing on a lower sensor resolution than that.