Comments about Mares Puck Pro Wrist Computer:

Face is 2.5" and display is 1.75".
Fantastic dive computer and very easy to read. With a little practice the one button interface makes sense and is easy to navigate.

Comments about Mares Puck Pro Wrist Computer:

I got this to replace my Oceanic Geo, which I hated. The Puck Pro is so easy to use and set up, you practically don't even need the manual. It's self explanatory.
Only thing is, if you don't use the extra features, like the PC program, Multi gas, and the other stuff you might just want to save some money and buy the standard puck. Although the Pro does look nicer!