Evoluent VM4S Vertical Mouse 4 Right Small Ergonomic Mouse - Wired

Product ID 16390


  • Wired USB for small to medium hand size for right-handed users
  • 2 years warranty
  • Compatible with any computer with USB and Android devices
  • Cable length: 2.1 m/6.9 ft

Features (The images below are of the regular right hand model)

Comfortable and Easy to use

The shape is thoughtfully sculpted for uncompromised comfort and easy-to-reach programmable buttons. No finger contortions are needed to operate the buttons.

Comfortable and easy to use

Improved Thumb Rest

The thumb rest has been reshaped to provide even more comfort over earlier versions.

Improved Thumb rest

Now Two Thumb Buttons

A new bottom thumb thumb button provides greatly extended functionality when used with the included driver.

Two Thumb Buttons

Extended Lip prevents rubbing

An extra wide lip along the button edge prevents the last finger from rubbing the desk.

Extended Lip prevents rubbing

Adjustable Laser Sensor

Pointer speed controls on the side allow convenient adjustment without even releasing your grip from the mouse.

Adjustable Laser Sensor

Pointed Speed Indicators

Top mounted LEDs show through the chrome thumb rest to indicate selected pointer speed including extra low (XL), low (LO), MD (medium), to high (HI).

Pointed Speed Indicators

Lighted Evoluent Logo

The logo is pure eye candy. The illumination turns off when the system is in sleep mode to conserve notebook battery power.

Lighted Evoluent Logo

Powerful and Intuitive Driver

Evoluent Mouse Manager for Windows provides extensive but easy to use functionality for 6 buttons through a simple and intuitive interface.

powerful and intuitive driver


After years of hearing that the Vertical Mouse is a little too big for some, Evoluent has made the New VM4 Version in a Smaller type. This new version is about 10% smaller. Since it is basically geared towards a woman`s hand that is smaller, the mouse has the original Purple Color for the buttons in front.

Avoids forearm twisting for comfort and good health. The patented shape supports your hand in an upright neutral posture that generally avoids forearm twisting. Many users, including medical doctors, ergonomists and physical therapists, said the Evoluent VerticalMouse provides superior comfort and even relieved their wrist pain.

Important Note: Touching the Evoluent Mouse when your hand is wet with alcohol-based hand sanitizer might eventually cause the paint to wrinkle. The product instructions sheet carries a warning about this fact. Please let your hand dry after each sanitizer application before touching the Vertical Mouse.

Hand Size Information (Maximum Hand Size)

The Evoluent VerticalMouse 4 Small is for hands less than about 7 inches or 178 mm long from the tip of the middle finger to the wrist crease. If your hand is the same size or smaller than the below drawing, VM4S may fit you better than the regular VM4R.

Evoluent VM4S Hand Size


  • Includes driver for Windows XP, Vista and Win 7, 8, and 10 in 32/64 bit for programming all 6 buttons. The driver is not required. The VerticalMouse 4 still has basic functionality without it.
  • Freeware driver for other Windows versions at www.highrez.co.uk/downloads/XMouseButtonControl.htm (Evoluent has no business relationship with this vendor.)
  • USB only; not compatible with PS2 adapters. May be compatible with some USB KVM switches but it is not guaranteed.
  • Basic functionality in OS X or newer without a driver: A Mac driver is coming in late 2010.
  • Shareware drivers are available at www.plentycom.jp/en/steermouse and www.usboverdrive.com for programming the buttons. (Evoluent has no business relationship with these vendors.)
Linux Basic functionality without a driver.
Unix Compatibility unknown

Approved ergonomic mouse of University of California, Berkeley

The Evoluent VerticalMouse 2 (an earlier model identical in concept) was evaluated in 2007 by a team at the health services clinic in UC Berkeley, including medical doctors, physical therapists, ergonomists, and administrators. It was found to be comfortable, easily adapted to, and promote a neutral wrist and forearm posture. It was the only vertical type mouse approved for staff use within UC Berkeley and for sale in the campus store at that time

Model VM4S
Manufacturer Evoluent
Part Number VM4S
UPC 852153014317
Mouse Type Vertical
Wireless No
Trackball No

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