[uallo]

Is there something similar with a lower profile? I use a Logitech MX Keys keyboard and the trackball seems too high to use it comfortably. Either a trackball or a trackpoint (like the one on Lenovos) would be OK.

[jsheard]

I'm not sure if a standalone trackpoint really makes sense, the main benefit of those is being accessible from the home row, which you lose if it's not integrated into the keyboard. If you're moving your hand anyway then you may as well use something more precise for pointing.

If you're willing to replace your keyboard, Lenovo does make a standalone version of their ThinkPad keyboard complete with trackpoint though.

[hasperdi]

Not exactly trackballs, but Magic Trackpad can be considered an alternative. Or roller mouse slim (crazy expensive)