Do the Liv, Gigi, and the Mona all have the same motor?

I believe the Liv & Gigi have the same motor despite their external shape. I am not sure if the Mona would have the same motor as the Liv or Gigi. I would think, however, that the motor is the same in all three because they drive a rotating 'lead' weight in a different part of the internal housing of the toy.

The Mona is from Lelo's later line of toys, so it has a stronger motor than Gigi and Liv.

the texture