Gimbal vs unipivot tonearms

It can be both, read about this tonearm.

"Another Reed 3Ps innovation is its bearing system. Although tonearm bearing system can be considered as gimbal, it acts like unipivot one. However, major difference from unipivot system is that instead of a single pivot three pivots and both vertical and horizontal axis’ magnetic stabilizers are used. Such bearing system is as rigid as gimbal, but its friction coefficient is as low as in unipivot." 

The quote I posted above is what Reed designer explained about his bearing system. I have my Reed 3p since 2013, you are late.