The Leatherman Tread LT tool is a wearable multitool, with small tooled links that combine to form a bracelet or watch band. Each link contains two or three tools, so the whole assembly gives you a complete set of screwdrivers, hex drives and box wrenches. It is 18mm wide (.7"), significantly narrower than the 30mm Tread.
There are no similar tools from Victorinox or Wenger.
Other pocket-size Leatherman tools.