(1) In the forearm with 20-degree angle, compared to a Logitech M650 mouse. (2) Requires Logi Options+ app, available for recent versions of Windows and macOS at logi.com/optionsplus. (3) Battery life may vary based on user and computing conditions. (4) Excludes plastic in receiver, printed wiring assembly, cables, and packaging. (5)Sound level comparison between MX Ergo S and MX Ergo. Left click dBA measured by the Logitech internal lab at 1m. (6) The device's basic functions will be supported without additional drivers for operating systems other than Windows and macOS.