Some people find the palm-down posture required by a traditional mouse leads to pain in the arm, wrist or hand.
While some of those find the answer is to switch to a trackpad or trackball, others get on better with a vertical mouse.
The terminology doesn't relate to the direction of movement, only that the shape of the mouse means that the user's wrist isn't horizontal (parallel with the desk surface), instead it is more or less vertical (somewhere between 45 and 90 degrees).
Features include three-way connectivity (USB-C, Bluetooth or Logitech's Unifying Receiver), 4000dpi tracking (with switchable tracking speed), four-month battery life (with three hours' use from a one-minute charge), four customisable buttons, scroll wheel, and support for Logitech's Easy-Switch and Flow features (to switch the mouse between two computers and to copy and paste content between them).
"We know that many computer users experience discomfort or pain in their hand, forearm and in their wrists," said Logitech general manager of creativity and productivity Delphine Donne-Crock.
"To address this, we've created our most advanced ergonomic mouse yet, MX Vertical, designed with an innovative natural handshake position. The unique angle is optimised for an ergonomic posture and reduces both wrist pressure and forearm strain. With MX Vertical, you can maximise your productivity in comfort."