I have both the
BathMate and
MityVac. Both have their positives and negatives.
Bathmate is great on the go, but when it comes down to specific needs to push for girth and length routines,
MityVac will dominates.
Just like
BathMate's idea, water is the way to go for the pump.
MityVac will require a 1 liter reservoir bottle upgrade over the 4 oz. So, do be ready to upgrade the reservoir if you are planning on using the water as part of the pumping routine.