9 out of 10 DPI. This mouse works great once you get through the initial setup. I had some issues, but honestly it was me. What I really like is that it can be used while charging, the option to turn the vertical scroll ratchet off and on, there's a button under the thumb space, and each app can have different user specified options for the buttons. The only thing I don't like is the lack of storage for the Logi Bolt USB receiver dongle in the mouse itself.

The overlay of the desktop in the video goes a little out of sync with the camera over the mouse. That was an issue with recording that I couldn't seem to fix.