One of the issues many users had with Android back in the day was the fact that the user interface was laggy. While Google slowly introduced updates and improvements over the years, it was only with Android 4.1 Jelly Bean that Google took Android’s lag seriously by introducing a major improvement that they called Project Butter.

Of course Google isn’t sitting on their laurels and are constantly checking to ensure Android continues to run as smooth as possible, but have you ever wondered how they go about doing that? As it turns out they actually have a machine that does the job for them. Dubbed the Chrome TouchBot, this is an OptoFidelity-made machine that can gauge any lag from your touchscreen.

As you can see in the image above, the robot will move around the phone’s display and prod at it constantly while running a series of tests meant to gauge its latency. From there if there are any issues that crops up or if the latency is not what Google had expected, presumably it’s back to the drawing board to decide how to best address it.

Also considering that touch is the main input on our smartphones and tablets these days, and let’s not forget hybrid devices, we suppose this rigorous form of testing doesn’t really come as a surprise, and here’s hoping that future builds of Android will be smoother than ever!

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