Logitech MX Ergo S Advanced Wireless Trackball

The body stays still; the thumb moves the ball.

2,048 dpi on the product page; the support specification also lists 2,000 (software) and 4,000 (firmware).

Logitech support lists 125 Hz (8 ms) over the receiver in HI mode and 88–133 Hz (7.5–11.25 ms) over Bluetooth; no single maximum is stated.

The product page lists 512–2,048 dpi; the support specification lists both '100-2000 (SW), 4000 (FW)' and '512 to 2048 DPI'.

With the magnetic metal base plate, without receiver. Without the plate: 164 g.

Without metal plate and receiver.

Logitech labels these Height 132.5 mm, Width 99.8 mm, Depth 51.4 mm; the first is the front-to-back length in its top-view convention.

Logitech describes the sculpted design as 'a good fit for medium to large-sized hands'.

Logitech's UK product data give certified PCR plastic of 20% for the mouse in Graphite 910-007260, excluding packaging, printed wiring assembly, cables and receiver, and note that the percentage of recycled plastic may vary by colour; the US page gives the same 20% for its Graphite MX Ergo S. Logitech's support specification lists the materials used as plastic PCR ABS, PC, rubber and metal.

Left/right click, back/forward, scroll wheel with left/right tilt and middle click, Precision Mode and Easy-Switch; 6 are customisable.

Logitech comparison with MX Ergo; no decibel figure is published.

Logitech Flow support via Logi Options+.

Logitech says MX Ergo S is certified by ergonomists, with a 20-degree tilt angle that encourages a better forearm posture and reduces muscle strain in the forearm by 27%. Logitech does not name the certifying ergonomists or the basis of the 27% figure on these pages.

Basic functions without drivers outside Windows and macOS.

Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ.