I like the Topeak Morph pumps. Over time I have unfortunately had to use both Road Morph and Mini Morph pumps while on the road. Here's my take on the two different size Morph pumps.
Road Morph
13 1/4 inches tall (336mm) (does not fit in the pump carrier on the seat of a Catrike 700)
Weighs 0.44 lbs (200g) (without holder and strap)
Flexible air hose
Pressure gauge (I find the gauge hard to read)
Rated at 160psi
Fits Schrader and Presta valves
Mini Morph
10 1/4 inches tall (260mm)
Weighs 0.33 lbs (150g) (without holder and strap)
Flexible air hose
No pressure gauge
Rated at 160psi
Fits Schrader and Presta valves
The Mini is virtually the small version of the larger Road but without the pressure gauge. They both have a flexible air hose that makes it easy to attach the pump to the valve stem without damaging the stem. In addition both pumps have a flip out foot hold so the pump can be placed on the ground and secured with one foot. The Morphs eliminate the need to hold the pump secure to the valve stem with one hand while pumping with the other. With the Morph both hands can be used to pump air making it easier to get more pressure in the tire.
I've found the Mini Morph easier to use with high pressure tires. It's shorter stature makes it easier to manage while pumping. It takes more strokes then the Road to increase pressure, but the Mini wobbles less, which makes it possible to actually get some realistic pressure in those skinny tires. On lower pressure tires both the Road Morph and Mini Morph work equally well.
With the Mini Morph I can comfortably get the pressure in my 23mm Ultremos up to 95psi. I use my heel to step on the foot hold and use my leg as a stabilizer and start pumping away. The Mini is rated at 160psi but I think I could probably get up to 110psi before my elbows tell me it's enough. Oh, the price us mature folk pay for using skinny tires.
NOTE: For a pressure gauge I use a Topeak digital gauge. It's small, fits in the palm of my hand, and weighs 0.15 lbs (70g).